diff options
Diffstat (limited to 'eth/rtl/verilog')
32 files changed, 0 insertions, 9008 deletions
diff --git a/eth/rtl/verilog/Clk_ctrl.v b/eth/rtl/verilog/Clk_ctrl.v deleted file mode 100644 index 917082644..000000000 --- a/eth/rtl/verilog/Clk_ctrl.v +++ /dev/null @@ -1,133 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// Clk_ctrl.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: Clk_ctrl.v,v $
-// Revision 1.3 2006/01/19 14:07:52 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:13 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:44 Administrator
-// no message
-//
-
-module Clk_ctrl(
-Reset ,
-Clk_125M ,
-//host interface,
-Speed ,
-//Phy interface ,
-Gtx_clk ,
-Rx_clk ,
-Tx_clk ,
-//interface clk ,
-MAC_tx_clk ,
-MAC_rx_clk ,
-MAC_tx_clk_div ,
-MAC_rx_clk_div
-);
-input Reset ;
-input Clk_125M ;
- //host interface
-input [2:0] Speed ;
- //Phy interface
-output Gtx_clk ;//used only in GMII mode
-input Rx_clk ;
-input Tx_clk ;//used only in MII mode
- //interface clk signals
-output MAC_tx_clk ;
-output MAC_rx_clk ;
-output MAC_tx_clk_div ;
-output MAC_rx_clk_div ;
-
-
-// ******************************************************************************
-// internal signals
-// ******************************************************************************
-wire Rx_clk_div2 ;
-wire Tx_clk_div2 ;
-// ******************************************************************************
-//
-// ******************************************************************************
- assign Gtx_clk = Clk_125M ;
- assign MAC_rx_clk = Rx_clk ;
- assign MAC_rx_clk_div = Rx_clk ;
- assign MAC_tx_clk = Clk_125M;
- assign MAC_tx_clk_div = Clk_125M;
-
-
- /*
-eth_clk_div2 U_0_CLK_DIV2(
-.Reset (Reset ),
-.IN (Rx_clk ),
-.OUT (Rx_clk_div2 )
-);
-
-eth_clk_div2 U_1_CLK_DIV2(
-.Reset (Reset ),
-.IN (Tx_clk ),
-.OUT (Tx_clk_div2 )
-);
-
-eth_clk_switch U_0_CLK_SWITCH(
-.IN_0 (Rx_clk_div2 ),
-.IN_1 (Rx_clk ),
-.SW (Speed[2] ),
-.OUT (MAC_rx_clk_div )
-);
-
-eth_clk_switch U_1_CLK_SWITCH(
-.IN_0 (Tx_clk ),
-.IN_1 (Clk_125M ),
-.SW (Speed[2] ),
-.OUT (MAC_tx_clk )
-);
-
-eth_clk_switch U_2_CLK_SWITCH(
-.IN_0 (Tx_clk_div2 ),
-.IN_1 (Clk_125M ),
-.SW (Speed[2] ),
-.OUT (MAC_tx_clk_div )
-);
-
- */
-endmodule
diff --git a/eth/rtl/verilog/MAC_rx.v b/eth/rtl/verilog/MAC_rx.v deleted file mode 100644 index 0e02e8fcc..000000000 --- a/eth/rtl/verilog/MAC_rx.v +++ /dev/null @@ -1,242 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// MAC_rx.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: MAC_rx.v,v $
-// Revision 1.4 2006/11/17 17:53:07 maverickist
-// no message
-//
-// Revision 1.3 2006/01/19 14:07:52 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:13 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:44 Administrator
-// no message
-//
-
-module MAC_rx
- #(parameter RX_FF_DEPTH = 9)
- (
-input Reset ,
-input Clk_user,
-input Clk ,
- //RMII interface
-input MCrs_dv ,
-input [7:0] MRxD ,
-input MRxErr ,
- //flow_control signals
-output [15:0] pause_quanta,
-output pause_quanta_val,
-output [15:0] rx_fifo_space,
- //user interface
-output Rx_mac_empty,
-input Rx_mac_rd ,
-output [31:0] Rx_mac_data ,
-output [1:0] Rx_mac_BE ,
-output Rx_mac_sop ,
-output Rx_mac_eop ,
-output Rx_mac_err ,
- //CPU
-input MAC_rx_add_chk_en ,
-input [7:0] MAC_add_prom_data ,
-input [2:0] MAC_add_prom_add ,
-input MAC_add_prom_wr ,
-input broadcast_filter_en ,
-input [15:0] broadcast_bucket_depth ,
-input [15:0] broadcast_bucket_interval ,
-input RX_APPEND_CRC,
-input [4:0] Rx_Hwmark ,
-input [4:0] Rx_Lwmark ,
-input CRC_chk_en ,
-input [5:0] RX_IFG_SET ,
-input [15:0] RX_MAX_LENGTH ,// 1518
-input [6:0] RX_MIN_LENGTH ,// 64
- //RMON interface
-output [15:0] Rx_pkt_length_rmon ,
-output Rx_apply_rmon ,
-output [2:0] Rx_pkt_err_type_rmon ,
-output [2:0] Rx_pkt_type_rmon ,
-
- output [15:0] rx_fifo_occupied,
- output rx_fifo_full,
- output rx_fifo_empty,
- output [31:0] debug
-);
-//******************************************************************************
-//internal signals
-//******************************************************************************
- //CRC_chk interface
-wire CRC_en ;
-wire [7:0] CRC_data;
-wire CRC_init;
-wire CRC_err ;
- //MAC_rx_add_chk interface
-wire MAC_add_en ;
-wire [7:0] MAC_add_data;
-wire MAC_rx_add_chk_err ;
- //broadcast_filter
-wire broadcast_ptr ;
-wire broadcast_drop ;
- //MAC_rx_ctrl interface
-wire [7:0] Fifo_data ;
-wire Fifo_data_en ;
-wire Fifo_full ;
-wire Fifo_data_err ;
-wire Fifo_data_drop ;
-wire Fifo_data_end ;
-
-
-//******************************************************************************
-//instantiation
-//******************************************************************************
-
-
-MAC_rx_ctrl U_MAC_rx_ctrl(
-.Reset (Reset ),
-.Clk (Clk ),
- //RMII interface ( //RMII interface ),
-.MCrs_dv (MCrs_dv ),
-.MRxD (MRxD ),
-.MRxErr (MRxErr ),
- //CRC_chk interface (//CRC_chk interface ),
-.CRC_en (CRC_en ),
-.CRC_data (CRC_data ),
-.CRC_init (CRC_init ),
-.CRC_err (CRC_err ),
- //MAC_rx_add_chk interface (//MAC_rx_add_chk interface),
-.MAC_add_en (MAC_add_en ),
-.MAC_add_data (MAC_add_data ),
-.MAC_rx_add_chk_err (MAC_rx_add_chk_err ),
- //broadcast_filter (//broadcast_filter ),
-.broadcast_ptr (broadcast_ptr ),
-.broadcast_drop (broadcast_drop ),
- //flow_control signals (//flow_control signals ),
-.pause_quanta (pause_quanta ),
-.pause_quanta_val (pause_quanta_val ),
- //MAC_rx_FF interface (//MAC_rx_FF interface ),
-.Fifo_data (Fifo_data ),
-.Fifo_data_en (Fifo_data_en ),
-.Fifo_data_err (Fifo_data_err ),
-.Fifo_data_drop (Fifo_data_drop ),
-.Fifo_data_end (Fifo_data_end ),
-.Fifo_full (Fifo_full ),
- //RMON interface (//RMON interface ),
-.Rx_pkt_type_rmon (Rx_pkt_type_rmon ),
-.Rx_pkt_length_rmon (Rx_pkt_length_rmon ),
-.Rx_apply_rmon (Rx_apply_rmon ),
-.Rx_pkt_err_type_rmon (Rx_pkt_err_type_rmon ),
- //CPU (//CPU ),
-.RX_IFG_SET (RX_IFG_SET ),
-.RX_MAX_LENGTH (RX_MAX_LENGTH ),
-.RX_MIN_LENGTH (RX_MIN_LENGTH )
-);
-
- assign debug = {28'd0, Fifo_data_en, Fifo_data_err, Fifo_data_end,Fifo_full};
-
-MAC_rx_FF #(.RX_FF_DEPTH(RX_FF_DEPTH)) U_MAC_rx_FF (
-.Reset (Reset ),
-.Clk_MAC (Clk ),
-.Clk_SYS (Clk_user ),
- //MAC_rx_ctrl interface (//MAC_rx_ctrl interface ),
-.Fifo_data (Fifo_data ),
-.Fifo_data_en (Fifo_data_en ),
-.Fifo_full (Fifo_full ),
-.Fifo_data_err (Fifo_data_err ),
-//.Fifo_data_drop (Fifo_data_drop ),
-.Fifo_data_end (Fifo_data_end ),
-.Fifo_space (rx_fifo_space ),
- //CPU (//CPU ),
-.Rx_Hwmark (Rx_Hwmark ),
-.Rx_Lwmark (Rx_Lwmark ),
-.RX_APPEND_CRC (RX_APPEND_CRC ),
- //user interface (//user interface ),
-.Rx_mac_empty (Rx_mac_empty ),
-.Rx_mac_rd (Rx_mac_rd ),
-.Rx_mac_data (Rx_mac_data ),
-.Rx_mac_BE (Rx_mac_BE ),
-.Rx_mac_sop (Rx_mac_sop ),
-.Rx_mac_eop (Rx_mac_eop ),
-.Rx_mac_err (Rx_mac_err ),
-
-.fifo_occupied(rx_fifo_occupied),
-.fifo_full_dbg(rx_fifo_full),
-.fifo_empty(rx_fifo_empty)
-);
-
- Broadcast_filter U_Broadcast_filter
- (.Reset (Reset ),
- .Clk (Clk ),
- //MAC_rx_ctrl (//MAC_rx_ctrl ),
- .broadcast_ptr (broadcast_ptr ),
- .broadcast_drop (broadcast_drop ),
- //FromCPU (//FromCPU ),
- .broadcast_filter_en (broadcast_filter_en ),
- .broadcast_bucket_depth (broadcast_bucket_depth ),
- .broadcast_bucket_interval (broadcast_bucket_interval )
- );
-
-CRC_chk U_CRC_chk(
-.Reset (Reset ),
-.Clk (Clk ),
-.CRC_data (CRC_data ),
-.CRC_init (CRC_init ),
-.CRC_en (CRC_en ),
- //From CPU (//From CPU ),
-.CRC_chk_en (CRC_chk_en ),
-.CRC_err (CRC_err )
-);
-
- MAC_rx_add_chk U_MAC_rx_add_chk
- (.Reset (Reset ),
- .Clk (Clk ),
- .Init (CRC_init ),
- .data (MAC_add_data ),
- .MAC_add_en (MAC_add_en ),
- .MAC_rx_add_chk_err (MAC_rx_add_chk_err ),
- //From CPU (//From CPU ),
- .MAC_rx_add_chk_en (MAC_rx_add_chk_en ),
- .MAC_add_prom_data (MAC_add_prom_data ),
- .MAC_add_prom_add (MAC_add_prom_add ),
- .MAC_add_prom_wr (MAC_add_prom_wr )
- );
-
-endmodule // MAC_rx
diff --git a/eth/rtl/verilog/MAC_rx/Broadcast_filter.v b/eth/rtl/verilog/MAC_rx/Broadcast_filter.v deleted file mode 100644 index bc95e31d7..000000000 --- a/eth/rtl/verilog/MAC_rx/Broadcast_filter.v +++ /dev/null @@ -1,107 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// Broadcast_filter.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: Broadcast_filter.v,v $
-// Revision 1.3 2006/01/19 14:07:54 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:16 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator
-// no message
-//
-
-module Broadcast_filter (
-Reset ,
-Clk ,
-//MAC_rx_ctrl ,
-broadcast_ptr ,
-broadcast_drop ,
-//FromCPU ,
-broadcast_filter_en ,
-broadcast_bucket_depth ,
-broadcast_bucket_interval
-);
-input Reset ;
-input Clk ;
- //MAC_rx_ctrl
-input broadcast_ptr ;
-output broadcast_drop ;
- //FromCPU ;
-input broadcast_filter_en ;
-input [15:0] broadcast_bucket_depth ;
-input [15:0] broadcast_bucket_interval ;
-
-//******************************************************************************
-//internal signals
-//******************************************************************************
-reg [15:0] time_counter ;
-reg [15:0] broadcast_counter ;
-reg broadcast_drop ;
-//******************************************************************************
-//
-//******************************************************************************
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- time_counter <=0;
- else if (time_counter==broadcast_bucket_interval)
- time_counter <=0;
- else
- time_counter <=time_counter+1;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- broadcast_counter <=0;
- else if (time_counter==broadcast_bucket_interval)
- broadcast_counter <=0;
- else if (broadcast_ptr&&broadcast_counter!=broadcast_bucket_depth)
- broadcast_counter <=broadcast_counter+1;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- broadcast_drop <=0;
- else if(broadcast_filter_en&&broadcast_counter==broadcast_bucket_depth)
- broadcast_drop <=1;
- else
- broadcast_drop <=0;
-
-endmodule
\ No newline at end of file diff --git a/eth/rtl/verilog/MAC_rx/CRC_chk.v b/eth/rtl/verilog/MAC_rx/CRC_chk.v deleted file mode 100644 index d6bb22b51..000000000 --- a/eth/rtl/verilog/MAC_rx/CRC_chk.v +++ /dev/null @@ -1,128 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// CRC_chk.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: CRC_chk.v,v $
-// Revision 1.3 2006/01/19 14:07:54 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:16 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator
-// no message
-//
-
-module CRC_chk(
-Reset ,
-Clk ,
-CRC_data ,
-CRC_init ,
-CRC_en ,
-//From CPU
-CRC_chk_en ,
-CRC_err
-);
-input Reset ;
-input Clk ;
-input[7:0] CRC_data ;
-input CRC_init ;
-input CRC_en ;
- //From CPU
-input CRC_chk_en ;
-output CRC_err ;
-//******************************************************************************
-//internal signals
-//******************************************************************************
-reg [31:0] CRC_reg;
-//******************************************************************************
-//input data width is 8bit, and the first bit is bit[0]
-function[31:0] NextCRC;
- input[7:0] D;
- input[31:0] C;
- reg[31:0] NewCRC;
- begin
- NewCRC[0]=C[24]^C[30]^D[1]^D[7];
- NewCRC[1]=C[25]^C[31]^D[0]^D[6]^C[24]^C[30]^D[1]^D[7];
- NewCRC[2]=C[26]^D[5]^C[25]^C[31]^D[0]^D[6]^C[24]^C[30]^D[1]^D[7];
- NewCRC[3]=C[27]^D[4]^C[26]^D[5]^C[25]^C[31]^D[0]^D[6];
- NewCRC[4]=C[28]^D[3]^C[27]^D[4]^C[26]^D[5]^C[24]^C[30]^D[1]^D[7];
- NewCRC[5]=C[29]^D[2]^C[28]^D[3]^C[27]^D[4]^C[25]^C[31]^D[0]^D[6]^C[24]^C[30]^D[1]^D[7];
- NewCRC[6]=C[30]^D[1]^C[29]^D[2]^C[28]^D[3]^C[26]^D[5]^C[25]^C[31]^D[0]^D[6];
- NewCRC[7]=C[31]^D[0]^C[29]^D[2]^C[27]^D[4]^C[26]^D[5]^C[24]^D[7];
- NewCRC[8]=C[0]^C[28]^D[3]^C[27]^D[4]^C[25]^D[6]^C[24]^D[7];
- NewCRC[9]=C[1]^C[29]^D[2]^C[28]^D[3]^C[26]^D[5]^C[25]^D[6];
- NewCRC[10]=C[2]^C[29]^D[2]^C[27]^D[4]^C[26]^D[5]^C[24]^D[7];
- NewCRC[11]=C[3]^C[28]^D[3]^C[27]^D[4]^C[25]^D[6]^C[24]^D[7];
- NewCRC[12]=C[4]^C[29]^D[2]^C[28]^D[3]^C[26]^D[5]^C[25]^D[6]^C[24]^C[30]^D[1]^D[7];
- NewCRC[13]=C[5]^C[30]^D[1]^C[29]^D[2]^C[27]^D[4]^C[26]^D[5]^C[25]^C[31]^D[0]^D[6];
- NewCRC[14]=C[6]^C[31]^D[0]^C[30]^D[1]^C[28]^D[3]^C[27]^D[4]^C[26]^D[5];
- NewCRC[15]=C[7]^C[31]^D[0]^C[29]^D[2]^C[28]^D[3]^C[27]^D[4];
- NewCRC[16]=C[8]^C[29]^D[2]^C[28]^D[3]^C[24]^D[7];
- NewCRC[17]=C[9]^C[30]^D[1]^C[29]^D[2]^C[25]^D[6];
- NewCRC[18]=C[10]^C[31]^D[0]^C[30]^D[1]^C[26]^D[5];
- NewCRC[19]=C[11]^C[31]^D[0]^C[27]^D[4];
- NewCRC[20]=C[12]^C[28]^D[3];
- NewCRC[21]=C[13]^C[29]^D[2];
- NewCRC[22]=C[14]^C[24]^D[7];
- NewCRC[23]=C[15]^C[25]^D[6]^C[24]^C[30]^D[1]^D[7];
- NewCRC[24]=C[16]^C[26]^D[5]^C[25]^C[31]^D[0]^D[6];
- NewCRC[25]=C[17]^C[27]^D[4]^C[26]^D[5];
- NewCRC[26]=C[18]^C[28]^D[3]^C[27]^D[4]^C[24]^C[30]^D[1]^D[7];
- NewCRC[27]=C[19]^C[29]^D[2]^C[28]^D[3]^C[25]^C[31]^D[0]^D[6];
- NewCRC[28]=C[20]^C[30]^D[1]^C[29]^D[2]^C[26]^D[5];
- NewCRC[29]=C[21]^C[31]^D[0]^C[30]^D[1]^C[27]^D[4];
- NewCRC[30]=C[22]^C[31]^D[0]^C[28]^D[3];
- NewCRC[31]=C[23]^C[29]^D[2];
- NextCRC=NewCRC;
- end
- endfunction
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- CRC_reg <=32'hffffffff;
- else if (CRC_init)
- CRC_reg <=32'hffffffff;
- else if (CRC_en)
- CRC_reg <=NextCRC(CRC_data,CRC_reg);
-
-assign CRC_err = CRC_chk_en&(CRC_reg[31:0] != 32'hc704dd7b);
-
-endmodule
diff --git a/eth/rtl/verilog/MAC_rx/MAC_rx_FF.v b/eth/rtl/verilog/MAC_rx/MAC_rx_FF.v deleted file mode 100644 index e212b8986..000000000 --- a/eth/rtl/verilog/MAC_rx/MAC_rx_FF.v +++ /dev/null @@ -1,167 +0,0 @@ -
-// ////////////////////////////////////////////////////////////////////
-// Completely Rewritten by M. Ettus, no John Gao code left
-// ////////////////////////////////////////////////////////////////////
-
-module MAC_rx_FF
- #(parameter RX_FF_DEPTH = 9)
- (input Reset,
- input Clk_MAC,
- input Clk_SYS,
-
- // MAC_rx_ctrl interface
- input [7:0] Fifo_data,
- input Fifo_data_en,
- output Fifo_full,
- input Fifo_data_err,
- input Fifo_data_end,
- output [15:0] Fifo_space,
-
- // CPU
- input RX_APPEND_CRC,
- input [4:0] Rx_Hwmark,
- input [4:0] Rx_Lwmark,
-
- // User interface
- output Rx_mac_empty,
- input Rx_mac_rd,
- output [31:0] Rx_mac_data,
- output [1:0] Rx_mac_BE,
- output Rx_mac_sop,
- output Rx_mac_eop,
- output Rx_mac_err,
-
- // FIFO Levels
- output [15:0] fifo_occupied,
- output fifo_full_dbg,
- output fifo_empty
- );
-
- reg [1:0] FF_state;
- reg [2:0] PKT_state;
- reg [31:0] staging;
- reg [35:0] staging2;
- reg line_ready, line_ready_d1;
- wire sop_i, eop_i;
- reg [1:0] be;
-
- always @(posedge Clk_MAC or posedge Reset)
- if(Reset)
- FF_state <= 0;
- else
- if(Fifo_data_err | Fifo_data_end)
- FF_state <= 0;
- else if(Fifo_data_en)
- FF_state <= FF_state + 1;
-
- always @(posedge Clk_MAC or posedge Reset)
- if(Reset)
- staging[31:0] <= 0;
- else if(Fifo_data_en)
- case(FF_state)
- 0 : staging[31:24] <= Fifo_data;
- 1 : staging[23:16] <= Fifo_data;
- 2 : staging[15:8] <= Fifo_data;
- 3 : staging[7:0] <= Fifo_data;
- endcase // case(FF_state)
-
- localparam PKT_idle = 0;
- localparam PKT_sop = 1;
- localparam PKT_pkt = 2;
- localparam PKT_end = 3;
- localparam PKT_err = 4;
-
- always @(posedge Clk_MAC or posedge Reset)
- if(Reset)
- PKT_state <= 0;
- else
- case(PKT_state)
- PKT_idle :
- if(Fifo_data_en)
- PKT_state <= PKT_sop;
- PKT_sop, PKT_pkt :
- if(Fifo_data_err | (line_ready & Fifo_full))
- PKT_state <= PKT_err;
- else if(Fifo_data_end)
- PKT_state <= PKT_end;
- else if(line_ready & ~Fifo_full)
- PKT_state <= PKT_pkt;
- PKT_end :
- PKT_state <= PKT_idle;
- PKT_err :
- if(~Fifo_full)
- PKT_state <= PKT_idle;
- endcase // case(PKT_state)
-
- assign sop_i = (PKT_state == PKT_sop);
- assign eop_i = (PKT_state == PKT_end);
-
- always @(posedge Clk_MAC)
- if(line_ready)
- staging2 <= {sop_i, eop_i, be[1:0], staging};
-
- always @(posedge Clk_MAC)
- if(Reset)
- line_ready <= 0;
- else if((Fifo_data_en & (FF_state==2'd3)) | Fifo_data_end | Fifo_data_err)
- line_ready <= 1;
- else
- line_ready <= 0;
-
- always @(posedge Clk_MAC)
- line_ready_d1 <= line_ready;
-
- always @(posedge Clk_MAC)
- if(Fifo_data_end | Fifo_data_err)
- be <= FF_state;
- else
- be <= 0;
-
- wire sop_o, eop_o, empty;
- wire [1:0] be_o;
- wire [RX_FF_DEPTH-1:0] occupied, occupied_sysclk;
- wire [31:0] dataout;
-
-/*
- fifo_2clock #(.DWIDTH(36),.AWIDTH(RX_FF_DEPTH)) mac_rx_fifo
- (.wclk(Clk_MAC),.datain((PKT_state==PKT_err) ? 36'hF_FFFF_FFFF : staging2),.write(~Fifo_full & (line_ready_d1|(PKT_state==PKT_err))),
- .full(Fifo_full),.level_wclk(occupied),
- .rclk(Clk_SYS),.dataout({sop_o,eop_o,be_o[1:0],dataout}),.read(Rx_mac_rd),
- .empty(empty),.level_rclk(),
- .arst(Reset) );
- */
-
- fifo_xlnx_2Kx36_2clk mac_rx_ff_core
- (
- .din((PKT_state==PKT_err) ? 36'hF_FFFF_FFFF : staging2), // Bus [35 : 0]
- .rd_clk(Clk_SYS),
- .rd_en(Rx_mac_rd),
- .rst(Reset),
- .wr_clk(Clk_MAC),
- .wr_en(~Fifo_full & (line_ready_d1|(PKT_state==PKT_err))),
- .dout({sop_o,eop_o,be_o[1:0],dataout}), // Bus [35 : 0]
- .empty(empty),
- .full(Fifo_full),
- .rd_data_count(occupied_sysclk), // Bus [11 : 0]
- .wr_data_count(occupied)); // Bus [11 : 0]
-
- assign Fifo_space[15:RX_FF_DEPTH] = 0;
- assign Fifo_space[RX_FF_DEPTH-1:0] = ~occupied;
- assign fifo_occupied = occupied_sysclk;
- assign fifo_full_dbg = Fifo_full; // FIXME -- in wrong clock domain
- assign fifo_empty = empty;
-
- // mac side fifo interface
- // Input - Rx_mac_rd
- // Output - Rx_mac_empty, Rx_mac_sop, Rx_mac_eop, Rx_mac_err, Rx_mac_data, Rx_mac_BE
-
- assign Rx_mac_BE = be_o;
- assign Rx_mac_sop = sop_o & ~eop_o;
- assign Rx_mac_eop = eop_o;
- assign Rx_mac_err = sop_o & eop_o;
- assign Rx_mac_empty = empty;
- assign Rx_mac_data = dataout;
-
-endmodule // MAC_rx_FF
-
-// FIXME Should we send out an "almost full" signal instead of full?
diff --git a/eth/rtl/verilog/MAC_rx/MAC_rx_add_chk.v b/eth/rtl/verilog/MAC_rx/MAC_rx_add_chk.v deleted file mode 100644 index 0c8d6bd4e..000000000 --- a/eth/rtl/verilog/MAC_rx/MAC_rx_add_chk.v +++ /dev/null @@ -1,158 +0,0 @@ -// ////////////////////////////////////////////////////////////////////
-// // ////
-// // MAC_rx_add_chk.v ////
-// // ////
-// // This file is part of the Ethernet IP core project ////
-// // http://www.opencores.org/projects.cgi/wr_en/ethernet_tri_mode/////
-// // ////
-// // Author(s): ////
-// // - Jon Gao (gaojon@yahoo.com) ////
-// // ////
-// // ////
-// ////////////////////////////////////////////////////////////////////
-// // ////
-// // Copyright (C) 2001 Authors ////
-// // ////
-// // This source file may be used and distributed without ////
-// // restriction provided that this copyright statement is not ////
-// // removed from the file and that any derivative work contains ////
-// // the original copyright notice and the associated disclaimer. ////
-// // ////
-// // This source file is free software; you can redistribute it ////
-// // and/or modify it under the terms of the GNU Lesser General ////
-// // Public License as published by the Free Software Foundation; ////
-// // either version 2.1 of the License, or (at your option) any ////
-// // later version. ////
-// // ////
-// // This source is distributed in the hope that it will be ////
-// // useful, but WITHOUT ANY WARRANTY; without even the implied ////
-// // warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-// // PURPOSE. See the GNU Lesser General Public License for more ////
-// // details. ////
-// // ////
-// // You should have received a copy of the GNU Lesser General ////
-// // Public License along with this source; if not, download it ////
-// // from http://www.opencores.org/lgpl.shtml ////
-// // ////
-// ////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: MAC_rx_add_chk.v,v $
-// Revision 1.3 2006/01/19 14:07:54 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:17 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator
-// no message
-//
-
-module MAC_rx_add_chk
- (Reset ,
- Clk ,
- Init ,
- data ,
- MAC_add_en ,
- MAC_rx_add_chk_err ,
- //From CPU
- MAC_rx_add_chk_en ,
- MAC_add_prom_data ,
- MAC_add_prom_add ,
- MAC_add_prom_wr
- );
-
- input Reset ;
- input Clk ;
- input Init ;
- input [7:0] data ;
- input MAC_add_en ;
- output MAC_rx_add_chk_err ;
- //From CPU
- input MAC_rx_add_chk_en ;
- input [7:0] MAC_add_prom_data ;
- input [2:0] MAC_add_prom_add ;
- input MAC_add_prom_wr ;
-
- // ******************************************************************************
- // internal signals
- // ******************************************************************************
- reg [2:0] addr_rd;
- wire [2:0] addr_wr;
- wire [7:0] din;
- //wire [7:0] dout;
- reg [7:0] dout;
- wire wr_en;
-
- reg MAC_rx_add_chk_err;
- reg MAC_add_prom_wr_dl1;
- reg MAC_add_prom_wr_dl2;
- reg [7:0] data_dl1 ;
- reg MAC_add_en_dl1 ;
-
- // ******************************************************************************
- // write data from cpu to prom
- // ******************************************************************************
- always @ (posedge Clk or posedge Reset)
- if (Reset)
- begin
- data_dl1 <=0;
- MAC_add_en_dl1 <=0;
- end
- else
- begin
- data_dl1 <=data;
- MAC_add_en_dl1 <=MAC_add_en;
- end
-
- always @ (posedge Clk or posedge Reset)
- if (Reset)
- begin
- MAC_add_prom_wr_dl1 <=0;
- MAC_add_prom_wr_dl2 <=0;
- end
- else
- begin
- MAC_add_prom_wr_dl1 <=MAC_add_prom_wr;
- MAC_add_prom_wr_dl2 <=MAC_add_prom_wr_dl1;
- end
-
- assign wr_en =MAC_add_prom_wr_dl1&!MAC_add_prom_wr_dl2;
- assign addr_wr =MAC_add_prom_add;
- assign din =MAC_add_prom_data;
-
- // ******************************************************************************
- // mac add verify
- // ******************************************************************************
- always @ (posedge Clk or posedge Reset)
- if (Reset)
- addr_rd <=0;
- else if (Init)
- addr_rd <=0;
- else if (MAC_add_en)
- addr_rd <=addr_rd + 1;
-
- always @ (posedge Clk or posedge Reset)
- if (Reset)
- MAC_rx_add_chk_err <=0;
- else if (Init)
- MAC_rx_add_chk_err <=0;
- else if (MAC_rx_add_chk_en && MAC_add_en_dl1 && (dout!=data_dl1) )
- MAC_rx_add_chk_err <=1;
-
-
- // ******************************************************************************
- // a port for read ,b port for write .
- // ******************************************************************************
-
- reg [7:0] address_ram [0:7];
- always @(posedge Clk)
- if(wr_en)
- address_ram[addr_wr] <= din;
-
- always @(posedge Clk)
- dout <= address_ram[addr_rd];
-
-endmodule // MAC_rx_add_chk
diff --git a/eth/rtl/verilog/MAC_rx/MAC_rx_ctrl.v b/eth/rtl/verilog/MAC_rx/MAC_rx_ctrl.v deleted file mode 100644 index 5ab795801..000000000 --- a/eth/rtl/verilog/MAC_rx/MAC_rx_ctrl.v +++ /dev/null @@ -1,664 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// MAC_rx_ctrl.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: MAC_rx_ctrl.v,v $
-// Revision 1.4 2006/06/25 04:58:56 maverickist
-// no message
-//
-// Revision 1.3 2006/01/19 14:07:54 maverickist
-// verification is complete.
-//
-// Revision 1.3 2005/12/16 06:44:17 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.2 2005/12/13 12:15:37 Administrator
-// no message
-//
-// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator
-// no message
-//
-
-module MAC_rx_ctrl (
-Reset ,
-Clk ,
-//RMII interface
-MCrs_dv , //
-MRxD , //
-MRxErr , //
-//CRC_chk interface
-CRC_en ,
-CRC_data,
-CRC_init ,
-CRC_err ,
-//MAC_rx_add_chk interface
-MAC_add_en ,
-MAC_add_data,
-MAC_rx_add_chk_err ,
-//broadcast_filter
-broadcast_ptr ,
-broadcast_drop ,
-//flow_control signals
-pause_quanta ,
-pause_quanta_val ,
-//MAC_rx_FF interface
-Fifo_data ,
-Fifo_data_en ,
-Fifo_data_err ,
-Fifo_data_drop ,
-Fifo_data_end ,
-Fifo_full ,
-//RMON interface
-Rx_pkt_type_rmon ,
-Rx_pkt_length_rmon ,
-Rx_apply_rmon ,
-Rx_pkt_err_type_rmon ,
-//CPU
-RX_IFG_SET ,
-RX_MAX_LENGTH,
-RX_MIN_LENGTH
-);
-
-input Reset ;
-input Clk ;
- //RMII interface
-input MCrs_dv ;
-input [7:0] MRxD ;
-input MRxErr ;
- //CRC_chk interface
-output CRC_en ;
-output CRC_init;
-output [7:0] CRC_data;
-input CRC_err ;
- //MAC_rx_add_chk interface
-output MAC_add_en ;
-output [7:0] MAC_add_data;
-input MAC_rx_add_chk_err ;
- //broadcast_filter
-output broadcast_ptr ;
-input broadcast_drop ;
- //flow_control signals
-output [15:0] pause_quanta ;
-output pause_quanta_val ;
- //MAC_rx_FF interface
-output [7:0] Fifo_data ;
-output Fifo_data_en ;
-output Fifo_data_err ;
-output Fifo_data_drop ;
-output Fifo_data_end ;
-input Fifo_full;
- //RMON interface
-output [15:0] Rx_pkt_length_rmon ;
-output Rx_apply_rmon ;
-output [2:0] Rx_pkt_err_type_rmon ;
-output [2:0] Rx_pkt_type_rmon ;
- //CPU
-input [5:0] RX_IFG_SET ;
-input [15:0] RX_MAX_LENGTH ;// 1518
-input [6:0] RX_MIN_LENGTH ;// 64
-
-//******************************************************************************
-//internal signals
-//******************************************************************************
-parameter State_idle =4'd00;
-parameter State_preamble =4'd01;
-parameter State_SFD =4'd02;
-parameter State_data =4'd03;
-parameter State_checkCRC =4'd04;
-parameter State_OkEnd =4'd07;
-parameter State_DropEnd =4'd08;
-parameter State_ErrEnd =4'd09;
-parameter State_CRCErrEnd =4'd10;
-parameter State_FFFullDrop =4'd11;
-parameter State_FFFullErrEnd =4'd12;
-parameter State_IFG =4'd13;
-parameter State_Drop2End =4'd14;
-
-parameter Pause_idle =4'd0;
-parameter Pause_pre_syn =4'd1;
-parameter Pause_quanta_hi =4'd2;
-parameter Pause_quanta_lo =4'd3;
-parameter Pause_syn =4'd4;
-
-reg [3:0] Current_state /* synthesis syn_keep=1 */;
-reg [3:0] Next_state;
-reg [3:0] Pause_current /* synthesis syn_keep=1 */;
-reg [3:0] Pause_next;
-reg [5:0] IFG_counter;
-reg Crs_dv ;
-reg [7:0] RxD ;
-reg [7:0] RxD_dl1 ;
-reg RxErr ;
-reg [15:0] Frame_length_counter;
-reg Too_long;
-reg Too_short;
-reg ProcessingHeader;
-//reg Fifo_data_en;
-//reg Fifo_data_err;
-//reg Fifo_data_drop;
-//reg Fifo_data_end;
-reg CRC_en;
-reg CRC_init;
-reg Rx_apply_rmon;
-reg [2:0] Rx_pkt_err_type_rmon;
-reg MAC_add_en;
-reg [2:0] Rx_pkt_type_rmon;
-reg [7:0] pause_quanta_h ;
-reg [15:0] pause_quanta ;
-reg pause_quanta_val ;
-reg pause_quanta_val_tmp;
-reg pause_frame_ptr ;
-reg broadcast_ptr ;
-//******************************************************************************
-//delay signals
-//******************************************************************************
-
-always @ (posedge Reset or posedge Clk)
- if (Reset)
- begin
- Crs_dv <=0;
- RxD <=0;
- RxErr <=0;
- end
- else
- begin
- Crs_dv <=MCrs_dv ;
- RxD <=MRxD ;
- RxErr <=MRxErr ;
- end
-
-always @ (posedge Reset or posedge Clk)
- if (Reset)
- RxD_dl1 <=0;
- else
- RxD_dl1 <=RxD;
-
-//---------------------------------------------------------------------------
-// Small pre-FIFO (acutally a synchronously clearable shift-register) for
-// storing the first part of a packet before writing it to the "real" FIFO
-// in MAC_rx_FF. This allows a packet to be dropped safely if an error
-// happens in the beginning of a packet (or if the MAC address doesn't pass
-// the receive filter!)
-//---------------------------------------------------------------------------
-
- reg pre_fifo_data_drop;
- reg pre_fifo_data_en;
- reg pre_fifo_data_err;
- reg pre_fifo_data_end;
- wire [7:0] pre_fifo_wrdata;
-
- reg [8+3-1:0] pre_fifo_element_0;
- reg [8+3-1:0] pre_fifo_element_1;
- reg [8+3-1:0] pre_fifo_element_2;
- reg [8+3-1:0] pre_fifo_element_3;
- reg [8+3-1:0] pre_fifo_element_4;
- reg [8+3-1:0] pre_fifo_element_5;
- reg [8+3-1:0] pre_fifo_element_6;
- reg [8+3-1:0] pre_fifo_element_7;
- reg [8+3-1:0] pre_fifo_element_8;
- reg [8+3-1:0] pre_fifo_element_9;
-
- always @( posedge Reset or posedge Clk )
- if ( Reset )
- begin
- pre_fifo_element_0 <= 'b0;
- pre_fifo_element_1 <= 'b0;
- pre_fifo_element_2 <= 'b0;
- pre_fifo_element_3 <= 'b0;
- pre_fifo_element_4 <= 'b0;
- pre_fifo_element_5 <= 'b0;
- pre_fifo_element_6 <= 'b0;
- pre_fifo_element_7 <= 'b0;
- pre_fifo_element_8 <= 'b0;
- pre_fifo_element_9 <= 'b0;
- end
- else
- begin
- if ( pre_fifo_data_drop )
- begin
- pre_fifo_element_0 <= 'b0;
- pre_fifo_element_1 <= 'b0;
- pre_fifo_element_2 <= 'b0;
- pre_fifo_element_3 <= 'b0;
- pre_fifo_element_4 <= 'b0;
- pre_fifo_element_5 <= 'b0;
- pre_fifo_element_6 <= 'b0;
- pre_fifo_element_7 <= 'b0;
- pre_fifo_element_8 <= 'b0;
- pre_fifo_element_9 <= 'b0;
- end
- else
- begin
- pre_fifo_element_0 <= pre_fifo_element_1;
- pre_fifo_element_1 <= pre_fifo_element_2;
- pre_fifo_element_2 <= pre_fifo_element_3;
- pre_fifo_element_3 <= pre_fifo_element_4;
- pre_fifo_element_4 <= pre_fifo_element_5;
- pre_fifo_element_5 <= pre_fifo_element_6;
- pre_fifo_element_6 <= pre_fifo_element_7;
- pre_fifo_element_7 <= pre_fifo_element_8;
- pre_fifo_element_8 <= pre_fifo_element_9;
- pre_fifo_element_9 <= { pre_fifo_data_en,
- pre_fifo_data_err,
- pre_fifo_data_end,
- pre_fifo_wrdata };
- end
- end
-
- assign Fifo_data = pre_fifo_element_0[7:0];
- assign Fifo_data_end = pre_fifo_element_0[8];
- assign Fifo_data_err = pre_fifo_element_0[9];
- assign Fifo_data_en = pre_fifo_element_0[10];
-
- assign CRC_data = pre_fifo_wrdata;
- assign MAC_add_data = pre_fifo_wrdata;
-
-//******************************************************************************
-//State_machine
-//******************************************************************************
-
-always @( posedge Reset or posedge Clk )
- if ( Reset )
- Current_state <= State_idle;
- else
- Current_state <= Next_state;
-
-always @ (*)
- case (Current_state)
- State_idle:
- if ( Crs_dv&&RxD==8'h55 )
- Next_state = State_preamble;
- else
- Next_state = Current_state;
-
- State_preamble:
- if ( !Crs_dv )
- Next_state = State_DropEnd;
- else if ( RxErr )
- Next_state = State_DropEnd;
- else if ( RxD==8'hd5 )
- Next_state = State_SFD;
- else if ( RxD==8'h55 )
- Next_state =Current_state;
- else
- Next_state = State_DropEnd;
-
- State_SFD:
- if ( !Crs_dv )
- Next_state = State_DropEnd;
- else if ( RxErr )
- Next_state = State_DropEnd;
- else
- Next_state = State_data;
-
- State_data:
- if ( !Crs_dv && !ProcessingHeader && !Too_short && !Too_long )
- Next_state = State_checkCRC;
- else if ( !Crs_dv && ProcessingHeader )
- Next_state = State_Drop2End;
- else if ( !Crs_dv && (Too_short | Too_long) )
- Next_state = State_ErrEnd;
- else if ( Fifo_full )
- Next_state = State_FFFullErrEnd;
- else if ( RxErr && ProcessingHeader )
- Next_state = State_Drop2End;
- else if ( RxErr || Too_long )
- Next_state = State_ErrEnd;
- else if ( MAC_rx_add_chk_err || broadcast_drop )
- Next_state = State_DropEnd;
- else
- Next_state = State_data;
-
- State_checkCRC:
- if ( CRC_err )
- Next_state = State_CRCErrEnd;
- else
- Next_state = State_OkEnd;
-
- State_OkEnd:
- Next_state = State_IFG;
-
- State_ErrEnd:
- Next_state = State_IFG;
-
- State_DropEnd:
- Next_state = State_IFG;
-
- State_Drop2End:
- Next_state = State_IFG;
-
- State_CRCErrEnd:
- Next_state = State_IFG;
-
- State_FFFullErrEnd:
- Next_state = State_FFFullDrop;
-
- State_FFFullDrop:
- if ( !Crs_dv )
- Next_state =State_IFG;
- else
- Next_state =Current_state;
-
- State_IFG:
- if ( IFG_counter==RX_IFG_SET-4 ) // Remove some additional time?
- Next_state = State_idle;
- else
- Next_state = Current_state;
-
- default:
- Next_state = State_idle;
- endcase
-
-always @( posedge Reset or posedge Clk )
- if ( Reset )
- IFG_counter <= 0;
- else if ( Current_state!=State_IFG )
- IFG_counter <= 0;
- else
- IFG_counter <= IFG_counter + 1;
-
-//******************************************************************************
-//gen fifo interface signals
-//******************************************************************************
-
-assign pre_fifo_wrdata = RxD_dl1;
-
-always @( Current_state )
- if ( Current_state==State_data )
- pre_fifo_data_en = 1;
- else
- pre_fifo_data_en = 0;
-
-always @( Current_state )
- if ( (Current_state==State_ErrEnd ) ||
- (Current_state==State_OkEnd ) ||
- (Current_state==State_CRCErrEnd ) ||
- (Current_state==State_FFFullErrEnd) ||
- (Current_state==State_DropEnd ) ||
- (Current_state==State_Drop2End ) )
- pre_fifo_data_end = 1;
- else
- pre_fifo_data_end = 0;
-
-always @( Current_state )
- if ( (Current_state==State_ErrEnd ) ||
- (Current_state==State_CRCErrEnd ) ||
- (Current_state==State_FFFullErrEnd) ||
- (Current_state==State_DropEnd ) ||
- (Current_state==State_Drop2End ) )
- pre_fifo_data_err = 1;
- else
- pre_fifo_data_err = 0;
-
-always @( Current_state )
- if ( (Current_state==State_DropEnd ) ||
- (Current_state==State_Drop2End) )
- pre_fifo_data_drop = 1;
- else
- pre_fifo_data_drop = 0;
-
- // Drop in main Rx FIFO is no longer supported!
- assign Fifo_data_drop = 0;
-
-//******************************************************************************
-//CRC_chk interface
-//******************************************************************************
-
-always @(Current_state)
- if (Current_state==State_data)
- CRC_en =1;
- else
- CRC_en =0;
-
-always @(Current_state)
- if (Current_state==State_SFD)
- CRC_init =1;
- else
- CRC_init =0;
-
-//******************************************************************************
-//gen rmon signals
-//******************************************************************************
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Frame_length_counter <=0;
- else if (Current_state==State_SFD)
- Frame_length_counter <=1;
- else if (Current_state==State_data)
- Frame_length_counter <=Frame_length_counter+ 1'b1;
-
-always @( Frame_length_counter )
- if ( Frame_length_counter < 8 )
- ProcessingHeader = 1;
- else
- ProcessingHeader = 0;
-
-always @ (Frame_length_counter or RX_MIN_LENGTH)
- if (Frame_length_counter<RX_MIN_LENGTH)
- Too_short =1;
- else
- Too_short =0;
-
-always @ (*)
- if (Frame_length_counter>RX_MAX_LENGTH)
- Too_long =1;
- else
- Too_long =0;
-
-assign Rx_pkt_length_rmon = Frame_length_counter-1'b1;
-
-reg [2:0] Rx_apply_rmon_reg;
-
-always @( posedge Clk or posedge Reset )
- if ( Reset )
- begin
- Rx_apply_rmon <= 0;
- Rx_apply_rmon_reg <= 'b0;
- end
- else
- begin
- if ( (Current_state==State_OkEnd ) ||
- (Current_state==State_ErrEnd ) ||
- (Current_state==State_CRCErrEnd ) ||
- (Current_state==State_Drop2End ) ||
- (Current_state==State_FFFullErrEnd) )
- Rx_apply_rmon <= 1;
- else
- if ( Rx_apply_rmon_reg[2] )
- Rx_apply_rmon <= 0;
-
- Rx_apply_rmon_reg <= { Rx_apply_rmon_reg[1:0], Rx_apply_rmon };
- end
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Rx_pkt_err_type_rmon <=0;
- else if (Current_state==State_CRCErrEnd)
- Rx_pkt_err_type_rmon <=3'b001 ;//
- else if (Current_state==State_FFFullErrEnd)
- Rx_pkt_err_type_rmon <=3'b010 ;//
- else if ( (Current_state==State_ErrEnd) || (Current_state==State_Drop2End) )
- Rx_pkt_err_type_rmon <=3'b011 ;//
- else if(Current_state==State_OkEnd)
- Rx_pkt_err_type_rmon <=3'b100 ;
-
-
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Rx_pkt_type_rmon <=0;
- else if (Current_state==State_OkEnd&&pause_frame_ptr)
- Rx_pkt_type_rmon <=3'b100 ;//
- else if(Current_state==State_SFD&&Next_state==State_data)
- Rx_pkt_type_rmon <={1'b0,MRxD[7:6]};
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- broadcast_ptr <=0;
- else if(Current_state==State_IFG)
- broadcast_ptr <=0;
- else if(Current_state==State_SFD&&Next_state==State_data&&MRxD[7:6]==2'b11)
- broadcast_ptr <=1;
-
-
-
-//******************************************************************************
-//MAC add checker signals
-//******************************************************************************
-always @ (Frame_length_counter or pre_fifo_data_en)
- if(Frame_length_counter>=1&&Frame_length_counter<=6)
- MAC_add_en <=pre_fifo_data_en;
- else
- MAC_add_en <=0;
-
-//******************************************************************************
-//flow control signals
-//******************************************************************************
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Pause_current <=Pause_idle;
- else
- Pause_current <=Pause_next;
-
-always @ (*)
- case (Pause_current)
- Pause_idle :
- if(Current_state==State_SFD)
- Pause_next =Pause_pre_syn;
- else
- Pause_next =Pause_current;
- Pause_pre_syn:
- case (Frame_length_counter)
- 16'd1: if (RxD_dl1==8'h01)
- Pause_next =Pause_current;
- else
- Pause_next =Pause_idle;
- 16'd2: if (RxD_dl1==8'h80)
- Pause_next =Pause_current;
- else
- Pause_next =Pause_idle;
- 16'd3: if (RxD_dl1==8'hc2)
- Pause_next =Pause_current;
- else
- Pause_next =Pause_idle;
- 16'd4: if (RxD_dl1==8'h00)
- Pause_next =Pause_current;
- else
- Pause_next =Pause_idle;
- 16'd5: if (RxD_dl1==8'h00)
- Pause_next =Pause_current;
- else
- Pause_next =Pause_idle;
- 16'd6: if (RxD_dl1==8'h01)
- Pause_next =Pause_current;
- else
- Pause_next =Pause_idle;
- 16'd13: if (RxD_dl1==8'h88)
- Pause_next =Pause_current;
- else
- Pause_next =Pause_idle;
- 16'd14: if (RxD_dl1==8'h08)
- Pause_next =Pause_current;
- else
- Pause_next =Pause_idle;
- 16'd15: if (RxD_dl1==8'h00)
- Pause_next =Pause_current;
- else
- Pause_next =Pause_idle;
- 16'd16: if (RxD_dl1==8'h01)
- Pause_next =Pause_quanta_hi;
- else
- Pause_next =Pause_idle;
- default: Pause_next =Pause_current;
- endcase
- Pause_quanta_hi :
- Pause_next =Pause_quanta_lo;
- Pause_quanta_lo :
- Pause_next =Pause_syn;
- Pause_syn :
- if (Current_state==State_IFG)
- Pause_next =Pause_idle;
- else
- Pause_next =Pause_current;
- default
- Pause_next =Pause_idle;
- endcase
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- pause_quanta_h <=0;
- else if(Pause_current==Pause_quanta_hi)
- pause_quanta_h <=RxD_dl1;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- pause_quanta <=0;
- else if(Pause_current==Pause_quanta_lo)
- pause_quanta <={pause_quanta_h,RxD_dl1};
-
- // The following 2 always blocks are a strange way of holding
- // pause_quanta_val high for 2 cycles
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- pause_quanta_val_tmp <=0;
- else if(Current_state==State_OkEnd&&Pause_current==Pause_syn)
- pause_quanta_val_tmp <=1;
- else
- pause_quanta_val_tmp <=0;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- pause_quanta_val <=0;
- else if(Current_state==State_OkEnd&&Pause_current==Pause_syn||pause_quanta_val_tmp)
- pause_quanta_val <=1;
- else
- pause_quanta_val <=0;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- pause_frame_ptr <=0;
- else if(Pause_current==Pause_syn)
- pause_frame_ptr <=1;
- else
- pause_frame_ptr <=0;
-
-endmodule
-
-
diff --git a/eth/rtl/verilog/MAC_top.v b/eth/rtl/verilog/MAC_top.v deleted file mode 100644 index 4e5b0db0a..000000000 --- a/eth/rtl/verilog/MAC_top.v +++ /dev/null @@ -1,518 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// MAC_top.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-
-module MAC_top
- #(parameter TX_FF_DEPTH = 9,
- parameter RX_FF_DEPTH = 9)
- (
- // System signals
- input Clk_125M,
- input Clk_user,
-
- input rst_mac,
- input rst_user,
-
- // Wishbone compliant core host interface
- input RST_I, // Active high (async) reset of the Wishbone interface
- input CLK_I, // Wishbone interface clock (nominally 50 MHz)
- input STB_I, // Active high module-select
- input CYC_I, // Active high cycle-enable
- input [6:0] ADR_I, // Module register address
- input WE_I, // Active high for writes, low for reads
- input [31:0] DAT_I, // Write data
- output [31:0] DAT_O, // Read data
- output ACK_O, // Acknowledge output – single high pulse
-
- // User (packet) interface
- output Rx_mac_empty,
- input Rx_mac_rd,
- output [31:0] Rx_mac_data,
- output [1:0] Rx_mac_BE,
- output Rx_mac_sop,
- output Rx_mac_eop,
- output Rx_mac_err,
-
- output Tx_mac_wa,
- input Tx_mac_wr,
- input [31:0] Tx_mac_data,
- input [1:0] Tx_mac_BE,
- input Tx_mac_sop,
- input Tx_mac_eop,
-
- // PHY interface (GMII/MII)
- output Gtx_clk, // Used only in GMII mode
- input Rx_clk,
- input Tx_clk, // Used only in MII mode
- output Tx_er,
- output Tx_en,
- output [7:0] Txd,
- input Rx_er,
- input Rx_dv,
- input [7:0] Rxd,
- input Crs,
- input Col,
-
- // MDIO interface (to PHY)
- inout Mdio,
- output Mdc,
-
- // FIFO levels
- output [15:0] rx_fifo_occupied,
- output rx_fifo_full,
- output rx_fifo_empty,
- output [15:0] tx_fifo_occupied,
- output tx_fifo_full,
- output tx_fifo_empty,
-
- // Debug Interface
- output [31:0] debug0,
- output [31:0] debug1
-);
-
- wire rst_mac_rx = rst_mac;
- wire rst_mac_tx = rst_mac;
- wire [2:0] Speed;
-
- wire [31:0] debug_rx;
- wire [31:0] debug_tx0;
- wire [31:0] debug_tx1;
-
- //-------------------------------------------------------------------------
- // Local declarations
- //-------------------------------------------------------------------------
-
- // RMON interface
- wire [15:0] Rx_pkt_length_rmon;
- wire Rx_apply_rmon;
- wire [2:0] Rx_pkt_err_type_rmon;
- wire [2:0] Rx_pkt_type_rmon;
- wire [2:0] Tx_pkt_type_rmon;
- wire [15:0] Tx_pkt_length_rmon;
- wire Tx_apply_rmon;
- wire [2:0] Tx_pkt_err_type_rmon;
-
- // PHY interface
- wire MCrs_dv;
- wire [7:0] MRxD;
- wire MRxErr;
-
- // Flow-control signals
- wire [15:0] pause_quanta;
- wire pause_quanta_val;
- wire [15:0] rx_fifo_space;
- wire pause_apply, pause_quanta_sub;
- wire xon_gen, xoff_gen, xon_gen_complete, xoff_gen_complete;
- wire [15:0] fc_hwmark, fc_lwmark, fc_padtime;
-
- //PHY interface
- wire [7:0] MTxD;
- wire MTxEn;
- wire MCRS;
-
- // Interface clk signals
- wire MAC_tx_clk;
- wire MAC_rx_clk;
- wire MAC_tx_clk_div;
- wire MAC_rx_clk_div;
-
- // Reg signals
- wire [4:0] Tx_Hwmark;
- wire [4:0] Tx_Lwmark;
- wire pause_frame_send_en;
- wire [15:0] pause_quanta_set;
- wire MAC_tx_add_en;
- wire FullDuplex;
- wire [3:0] MaxRetry;
- wire [5:0] IFGset;
- wire [7:0] MAC_tx_add_prom_data;
- wire [2:0] MAC_tx_add_prom_add;
- wire MAC_tx_add_prom_wr;
- wire tx_pause_en;
-
- // Rx host interface
- wire MAC_rx_add_chk_en;
- wire [7:0] MAC_rx_add_prom_data;
- wire [2:0] MAC_rx_add_prom_add;
- wire MAC_rx_add_prom_wr;
- wire broadcast_filter_en;
- wire RX_APPEND_CRC;
- wire [4:0] Rx_Hwmark;
- wire [4:0] Rx_Lwmark;
- wire CRC_chk_en;
- wire [5:0] RX_IFG_SET;
- wire [15:0] RX_MAX_LENGTH;
- wire [6:0] RX_MIN_LENGTH;
-
- // RMON host interface
- wire [5:0] CPU_rd_addr;
- wire CPU_rd_apply;
- wire CPU_rd_grant;
- wire [31:0] CPU_rd_dout;
-
- // PHY int host interface
- wire Line_loop_en;
-
- // MII to CPU
- wire [7:0] Divider;
- wire [15:0] CtrlData;
- wire [4:0] Rgad;
- wire [4:0] Fiad;
- wire NoPre;
- wire WCtrlData;
- wire RStat;
- wire ScanStat;
- wire Busy;
- wire LinkFail;
- wire Nvalid;
- wire [15:0] Prsd;
- wire WCtrlDataStart;
- wire RStatStart;
- wire UpdateMIIRX_DATAReg;
- wire [15:0] broadcast_bucket_depth;
- wire [15:0] broadcast_bucket_interval;
-
- //-------------------------------------------------------------------------
- // Instantiation of sub-modules
- //-------------------------------------------------------------------------
-
- MAC_rx #(.RX_FF_DEPTH(RX_FF_DEPTH))
- U_MAC_rx(
- .Reset ( rst_mac_rx ),
- .Clk_user ( Clk_user ),
- .Clk ( MAC_rx_clk_div ),
-
- // RMII interface
- .MCrs_dv ( MCrs_dv ),
- .MRxD ( MRxD ),
- .MRxErr ( MRxErr ),
-
- // Flow-control signals
- .pause_quanta ( pause_quanta ),
- .pause_quanta_val ( pause_quanta_val ),
- .rx_fifo_space ( rx_fifo_space ),
-
- // User interface
- .Rx_mac_empty ( Rx_mac_empty ),
- .Rx_mac_rd ( Rx_mac_rd ),
- .Rx_mac_data ( Rx_mac_data ),
- .Rx_mac_BE ( Rx_mac_BE ),
- .Rx_mac_sop ( Rx_mac_sop ),
- .Rx_mac_eop ( Rx_mac_eop ),
- .Rx_mac_err ( Rx_mac_err ),
-
- // CPU
- .MAC_rx_add_chk_en ( MAC_rx_add_chk_en ),
- .MAC_add_prom_data ( MAC_rx_add_prom_data ),
- .MAC_add_prom_add ( MAC_rx_add_prom_add ),
- .MAC_add_prom_wr ( MAC_rx_add_prom_wr ),
- .broadcast_filter_en ( broadcast_filter_en ),
- .broadcast_bucket_depth ( broadcast_bucket_depth ),
- .broadcast_bucket_interval( broadcast_bucket_interval ),
- .RX_APPEND_CRC ( RX_APPEND_CRC ),
- .Rx_Hwmark ( Rx_Hwmark ),
- .Rx_Lwmark ( Rx_Lwmark ),
- .CRC_chk_en ( CRC_chk_en ),
- .RX_IFG_SET ( RX_IFG_SET ),
- .RX_MAX_LENGTH ( RX_MAX_LENGTH ),
- .RX_MIN_LENGTH ( RX_MIN_LENGTH ),
-
- // RMON interface
- .Rx_pkt_length_rmon ( Rx_pkt_length_rmon ),
- .Rx_apply_rmon ( Rx_apply_rmon ),
- .Rx_pkt_err_type_rmon ( Rx_pkt_err_type_rmon ),
- .Rx_pkt_type_rmon ( Rx_pkt_type_rmon ),
-
- .rx_fifo_occupied(rx_fifo_occupied),
- .rx_fifo_full(rx_fifo_full),
- .rx_fifo_empty(rx_fifo_empty),
- .debug(debug_rx)
- );
-
- MAC_tx #(.TX_FF_DEPTH(TX_FF_DEPTH))
- U_MAC_tx(
- .Reset ( rst_mac_tx ),
- .Clk ( MAC_tx_clk_div ),
- //.Clk_user ( Clk_user ),
- .Clk_user ( MAC_tx_clk_div ),
-
- // PHY interface
- .TxD ( MTxD ),
- .TxEn ( MTxEn ),
- .CRS ( MCRS ),
-
- // RMON
- .Tx_pkt_type_rmon ( Tx_pkt_type_rmon ),
- .Tx_pkt_length_rmon ( Tx_pkt_length_rmon ),
- .Tx_apply_rmon ( Tx_apply_rmon ),
- .Tx_pkt_err_type_rmon( Tx_pkt_err_type_rmon ),
-
- // User interface
- .Tx_mac_wa ( Tx_mac_wa ),
- .Tx_mac_wr ( Tx_mac_wr ),
- .Tx_mac_data ( Tx_mac_data ),
- .Tx_mac_BE ( Tx_mac_BE ),
- .Tx_mac_sop ( Tx_mac_sop ),
- .Tx_mac_eop ( Tx_mac_eop ),
-
- // Host interface
- .Tx_Hwmark ( Tx_Hwmark ),
- .Tx_Lwmark ( Tx_Lwmark ),
- .MAC_tx_add_en ( MAC_tx_add_en ),
- .FullDuplex ( FullDuplex ),
- .MaxRetry ( MaxRetry ),
- .IFGset ( IFGset ),
- .MAC_add_prom_data ( MAC_tx_add_prom_data ),
- .MAC_add_prom_add ( MAC_tx_add_prom_add ),
- .MAC_add_prom_wr ( MAC_tx_add_prom_wr ),
-
- .pause_apply ( pause_apply ),
- .pause_quanta_sub ( pause_quanta_sub ),
- .pause_quanta_set ( pause_quanta_set ),
- .xoff_gen ( xoff_gen ),
- .xon_gen ( xon_gen ),
- .xoff_gen_complete ( xoff_gen_complete ),
- .xon_gen_complete ( xon_gen_complete ),
- .debug0(debug_tx0),
- .debug1(debug_tx1)
- );
-
- // Flow control outbound -- when other side sends PAUSE, we wait
- flow_ctrl_tx flow_ctrl_tx
- (.rst(rst_mac_tx),
- .tx_clk(MAC_tx_clk_div),
- // Setting
- .tx_pause_en ( tx_pause_en ),
- // From RX side
- .pause_quanta (pause_quanta),
- .pause_quanta_val(pause_quanta_val), // Other guy sent a PAUSE
- // To TX side
- .pause_apply (pause_apply), // To TX, stop sending new frames
- .pause_quanta_sub (pause_quanta_sub) // From TX, indicates we have used up 1 quanta
- );
-
- flow_ctrl_rx flow_ctrl_rx // When we are running out of RX space, send a PAUSE
- (.rst(rst_mac_rx), // FIXME
- // Settings
- .pause_frame_send_en ( pause_frame_send_en ),
- .pause_quanta_set ( pause_quanta_set ),
- .fc_hwmark (fc_hwmark),
- .fc_lwmark (fc_lwmark),
- .fc_padtime (fc_padtime),
- // From RX side
- .rx_clk(MAC_rx_clk_div),
- .rx_fifo_space (rx_fifo_space), // Decide if we need to send a PAUSE
- // To TX side
- .tx_clk(MAC_tx_clk_div),
- .xoff_gen (xoff_gen),
- .xon_gen(xon_gen), // Tell our TX to send PAUSE frames
- .xoff_gen_complete (xoff_gen_complete),
- .xon_gen_complete(xon_gen_complete)
- );
-
- RMON U_RMON(
- .Clk ( CLK_I ),
- .Reset ( RST_I ),
-
- // Tx RMON
- .Tx_pkt_type_rmon ( Tx_pkt_type_rmon ),
- .Tx_pkt_length_rmon ( Tx_pkt_length_rmon ),
- .Tx_apply_rmon ( Tx_apply_rmon ),
- .Tx_pkt_err_type_rmon( Tx_pkt_err_type_rmon ),
-
- // Rx RMON
- .Rx_pkt_type_rmon ( Rx_pkt_type_rmon ),
- .Rx_pkt_length_rmon ( Rx_pkt_length_rmon ),
- .Rx_apply_rmon ( Rx_apply_rmon ),
- .Rx_pkt_err_type_rmon( Rx_pkt_err_type_rmon ),
-
- // CPU
- .CPU_rd_addr ( CPU_rd_addr ),
- .CPU_rd_apply ( CPU_rd_apply ),
- .CPU_rd_grant ( CPU_rd_grant ),
- .CPU_rd_dout ( CPU_rd_dout )
- );
-
- Phy_int U_Phy_int(
- .rst_mac_rx ( rst_mac_rx ),
- .rst_mac_tx ( rst_mac_tx ),
- .MAC_rx_clk ( MAC_rx_clk ),
- .MAC_tx_clk ( MAC_tx_clk ),
- // Rx interface
- .MCrs_dv ( MCrs_dv ),
- .MRxD ( MRxD ),
- .MRxErr ( MRxErr ),
- // Tx interface
- .MTxD ( MTxD ),
- .MTxEn ( MTxEn ),
- .MCRS ( MCRS ),
- // PHY interface
- .Tx_er ( Tx_er ),
- .Tx_en ( Tx_en ),
- .Txd ( Txd ),
- .Rx_er ( Rx_er ),
- .Rx_dv ( Rx_dv ),
- .Rxd ( Rxd ),
- .Crs ( Crs ),
- .Col ( Col ),
- // Host interface
- .Line_loop_en( Line_loop_en ),
- .Speed ( Speed ) );
-
- Clk_ctrl U_Clk_ctrl(
- .Reset ( rst_mac ),
- .Clk_125M ( Clk_125M ),
-
- // Host interface
- .Speed ( Speed ),
-
- // Phy interface
- .Gtx_clk ( Gtx_clk ),
- .Rx_clk ( Rx_clk ),
- .Tx_clk ( Tx_clk ),
-
- // Interface clocks
- .MAC_tx_clk ( MAC_tx_clk ),
- .MAC_rx_clk ( MAC_rx_clk ),
- .MAC_tx_clk_div( MAC_tx_clk_div ),
- .MAC_rx_clk_div( MAC_rx_clk_div )
- );
-
- eth_miim U_eth_miim(
- .Clk ( CLK_I ),
- .Reset ( RST_I ),
- .Divider ( Divider ),
- .NoPre ( NoPre ),
- .CtrlData ( CtrlData ),
- .Rgad ( Rgad ),
- .Fiad ( Fiad ),
- .WCtrlData ( WCtrlData ),
- .RStat ( RStat ),
- .ScanStat ( ScanStat ),
- .Mdio ( Mdio ),
- .Mdc ( Mdc ),
- .Busy ( Busy ),
- .Prsd ( Prsd ),
- .LinkFail ( LinkFail ),
- .Nvalid ( Nvalid ),
- .WCtrlDataStart ( WCtrlDataStart ),
- .RStatStart ( RStatStart ),
- .UpdateMIIRX_DATAReg( UpdateMIIRX_DATAReg )
- );
-
- Reg_int U_Reg_int(
- // Wishbone compliant core host interface
- .CLK_I( CLK_I ),
- .RST_I( RST_I ),
- .STB_I( STB_I ),
- .CYC_I( CYC_I ),
- .ADR_I( ADR_I ),
- .WE_I ( WE_I ),
- .DAT_I( DAT_I ),
- .DAT_O( DAT_O ),
- .ACK_O( ACK_O ),
-
- // Tx host interface
- .Tx_Hwmark ( Tx_Hwmark ),
- .Tx_Lwmark ( Tx_Lwmark ),
- .MAC_tx_add_en ( MAC_tx_add_en ),
- .FullDuplex ( FullDuplex ),
- .MaxRetry ( MaxRetry ),
- .IFGset ( IFGset ),
- .MAC_tx_add_prom_data ( MAC_tx_add_prom_data ),
- .MAC_tx_add_prom_add ( MAC_tx_add_prom_add ),
- .MAC_tx_add_prom_wr ( MAC_tx_add_prom_wr ),
-
- // Rx host interface
- .MAC_rx_add_chk_en ( MAC_rx_add_chk_en ),
- .MAC_rx_add_prom_data ( MAC_rx_add_prom_data ),
- .MAC_rx_add_prom_add ( MAC_rx_add_prom_add ),
- .MAC_rx_add_prom_wr ( MAC_rx_add_prom_wr ),
- .broadcast_filter_en ( broadcast_filter_en ),
- .broadcast_bucket_depth ( broadcast_bucket_depth ),
- .broadcast_bucket_interval( broadcast_bucket_interval ),
- .RX_APPEND_CRC ( RX_APPEND_CRC ),
- .Rx_Hwmark ( Rx_Hwmark ),
- .Rx_Lwmark ( Rx_Lwmark ),
- .CRC_chk_en ( CRC_chk_en ),
- .RX_IFG_SET ( RX_IFG_SET ),
- .RX_MAX_LENGTH ( RX_MAX_LENGTH ),
- .RX_MIN_LENGTH ( RX_MIN_LENGTH ),
-
- // Flow Control settings
- .pause_frame_send_en ( pause_frame_send_en ),
- .pause_quanta_set ( pause_quanta_set ),
- .tx_pause_en ( tx_pause_en ),
- .fc_hwmark ( fc_hwmark ),
- .fc_lwmark ( fc_lwmark ),
- .fc_padtime ( fc_padtime ),
-
- // RMON host interface
- .CPU_rd_addr ( CPU_rd_addr ),
- .CPU_rd_apply ( CPU_rd_apply ),
- .CPU_rd_grant ( CPU_rd_grant ),
- .CPU_rd_dout ( CPU_rd_dout ),
-
- // PHY int host interface
- .Line_loop_en ( Line_loop_en ),
- .Speed ( Speed ),
-
- // MII to CPU
- .Divider ( Divider ),
- .CtrlData ( CtrlData ),
- .Rgad ( Rgad ),
- .Fiad ( Fiad ),
- .NoPre ( NoPre ),
- .WCtrlData ( WCtrlData ),
- .RStat ( RStat ),
- .ScanStat ( ScanStat ),
- .Busy ( Busy ),
- .LinkFail ( LinkFail ),
- .Nvalid ( Nvalid ),
- .Prsd ( Prsd ),
- .WCtrlDataStart ( WCtrlDataStart ),
- .RStatStart ( RStatStart ),
- .UpdateMIIRX_DATAReg ( UpdateMIIRX_DATAReg )
- );
-
- assign debug0 = {xon_gen, xoff_gen, xon_gen_complete, xoff_gen_complete, debug_rx[3:0]};
- //assign debug0 = {{debug_rx[3:0], xon_gen, xon_gen_complete, xoff_gen, xoff_gen_complete},
- // {1'b0,Rx_mac_err,Rx_mac_empty,Rx_mac_rd,Rx_mac_sop,Rx_mac_eop,Rx_mac_BE[1:0]},
- // {rx_fifo_space}};
- //assign debug0 = debug_tx0;
- //assign debug1 = debug_tx1;
-endmodule
diff --git a/eth/rtl/verilog/MAC_tx.v b/eth/rtl/verilog/MAC_tx.v deleted file mode 100644 index bbf331022..000000000 --- a/eth/rtl/verilog/MAC_tx.v +++ /dev/null @@ -1,250 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// MAC_tx.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: MAC_tx.v,v $
-// Revision 1.4 2006/11/17 17:53:07 maverickist
-// no message
-//
-// Revision 1.3 2006/01/19 14:07:53 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:14 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:44 Administrator
-// no message
-//
-
-module MAC_tx
- #(parameter TX_FF_DEPTH = 9)
- (
-input Reset ,
-input Clk ,
-input Clk_user ,
- //PHY interface
-output [7:0] TxD ,
-output TxEn ,
-input CRS ,
- //RMON
-output [2:0] Tx_pkt_type_rmon ,
-output [15:0] Tx_pkt_length_rmon ,
-output Tx_apply_rmon ,
-output [2:0] Tx_pkt_err_type_rmon,
- //user interface
-output Tx_mac_wa ,
-input Tx_mac_wr ,
-input [31:0] Tx_mac_data ,
-input [1:0] Tx_mac_BE ,//big endian
-input Tx_mac_sop ,
-input Tx_mac_eop ,
- //host interface
-input [4:0] Tx_Hwmark ,
-input [4:0] Tx_Lwmark ,
-input MAC_tx_add_en ,
-input FullDuplex ,
-input [3:0] MaxRetry ,
-input [5:0] IFGset ,
-input [7:0] MAC_add_prom_data ,
-input [2:0] MAC_add_prom_add ,
-input MAC_add_prom_wr ,
- // Flow control stuff
-input pause_apply ,
-output pause_quanta_sub,
-input [15:0] pause_quanta_set ,
-input xoff_gen,
-input xon_gen,
-output xoff_gen_complete,
-output xon_gen_complete,
- output [31:0] debug0,
- output [31:0] debug1
-);
-
- // ******************************************************************************
- // internal signals
- // ******************************************************************************
- //CRC_gen Interface
-wire CRC_init ;
-wire[7:0] Frame_data ;
-wire Data_en ;
-wire CRC_rd ;
-wire CRC_end ;
-wire[7:0] CRC_out ;
- //Random_gen interface
-wire Random_init ;
-wire[3:0] RetryCnt ;
-wire Random_time_meet ;//levle hight indicate random time passed away
- //flow control
- //MAC_rx_FF
-wire[7:0] Fifo_data ;
-wire Fifo_rd ;
-wire Fifo_eop ;
-wire Fifo_da ;
-wire Fifo_rd_finish ;
-wire Fifo_rd_retry ;
-wire Fifo_ra ;
-wire Fifo_data_err_empty ;
-wire Fifo_data_err_full ;
- //MAC_tx_addr_add
-wire MAC_tx_addr_init ;
-wire MAC_tx_addr_rd ;
-wire[7:0] MAC_tx_addr_data ;
-
-
- reg xon_gen_d1, xoff_gen_d1;
- always @(posedge Clk) xon_gen_d1 <= xon_gen;
- always @(posedge Clk) xoff_gen_d1 <= xoff_gen;
-
-//******************************************************************************
-//instantiation
-//******************************************************************************
-MAC_tx_ctrl U_MAC_tx_ctrl(
-.Reset (Reset ),
-.Clk (Clk ),
- //CRC_gen Interface (//CRC_gen Interface ),
-.CRC_init (CRC_init ),
-.Frame_data (Frame_data ),
-.Data_en (Data_en ),
-.CRC_rd (CRC_rd ),
-.CRC_end (CRC_end ),
-.CRC_out (CRC_out ),
- //Random_gen interfac (//Random_gen interfac ),
-.Random_init (Random_init ),
-.RetryCnt (RetryCnt ),
-.Random_time_meet (Random_time_meet ),
- //flow control (//flow control ),
-.pause_apply (pause_apply ),
-.pause_quanta_sub (pause_quanta_sub ),
-.xoff_gen (xoff_gen_d1 ),
-.xoff_gen_complete (xoff_gen_complete ),
-.xon_gen (xon_gen_d1 ),
-.xon_gen_complete (xon_gen_complete ),
- //MAC_tx_FF (//MAC_tx_FF ),
-.Fifo_data (Fifo_data ),
-.Fifo_rd (Fifo_rd ),
-.Fifo_eop (Fifo_eop ),
-.Fifo_da (Fifo_da ),
-.Fifo_rd_finish (Fifo_rd_finish ),
-.Fifo_rd_retry (Fifo_rd_retry ),
-.Fifo_ra (Fifo_ra ),
-.Fifo_data_err_empty (Fifo_data_err_empty ),
-.Fifo_data_err_full (Fifo_data_err_full ),
- //RMII (//RMII ),
-.TxD (TxD ),
-.TxEn (TxEn ),
-.CRS (CRS ),
- //MAC_tx_addr_add (//MAC_tx_addr_add ),
-.MAC_tx_addr_rd (MAC_tx_addr_rd ),
-.MAC_tx_addr_data (MAC_tx_addr_data ),
-.MAC_tx_addr_init (MAC_tx_addr_init ),
- //RMON (//RMON ),
-.Tx_pkt_type_rmon (Tx_pkt_type_rmon ),
-.Tx_pkt_length_rmon (Tx_pkt_length_rmon ),
-.Tx_apply_rmon (Tx_apply_rmon ),
-.Tx_pkt_err_type_rmon (Tx_pkt_err_type_rmon ),
- //CPU (//CPU ),
-.pause_quanta_set (pause_quanta_set ),
-.MAC_tx_add_en (MAC_tx_add_en ),
-.FullDuplex (FullDuplex ),
-.MaxRetry (MaxRetry ),
-.IFGset (IFGset )
-);
-
-CRC_gen U_CRC_gen(
-.Reset (Reset ),
-.Clk (Clk ),
-.Init (CRC_init ),
-.Frame_data (Frame_data ),
-.Data_en (Data_en ),
-.CRC_rd (CRC_rd ),
-.CRC_out (CRC_out ),
-.CRC_end (CRC_end )
-);
-
- MAC_tx_addr_add U_MAC_tx_addr_add
- (.Reset (Reset ),
- .Clk (Clk ),
- .MAC_tx_addr_rd (MAC_tx_addr_rd ),
- .MAC_tx_addr_init (MAC_tx_addr_init ),
- .MAC_tx_addr_data (MAC_tx_addr_data ),
- //CPU
- .MAC_add_prom_data (MAC_add_prom_data ),
- .MAC_add_prom_add (MAC_add_prom_add ),
- .MAC_add_prom_wr (MAC_add_prom_wr )
- );
-
-MAC_tx_FF #(.TX_FF_DEPTH(TX_FF_DEPTH)) U_MAC_tx_FF(
-.Reset (Reset ),
-.Clk_MAC (Clk ),
-.Clk_SYS (Clk_user ),
- //MAC_rx_ctrl interf (//MAC_rx_ctrl interf ),
-.Fifo_data (Fifo_data ),
-.Fifo_rd (Fifo_rd ),
-.Fifo_rd_finish (Fifo_rd_finish ),
-.Fifo_rd_retry (Fifo_rd_retry ),
-.Fifo_eop (Fifo_eop ),
-.Fifo_da (Fifo_da ),
-.Fifo_ra (Fifo_ra ),
-.Fifo_data_err_empty (Fifo_data_err_empty ),
-.Fifo_data_err_full (Fifo_data_err_full ),
- //user interface (//user interface ),
-.Tx_mac_wa (Tx_mac_wa ),
-.Tx_mac_wr (Tx_mac_wr ),
-.Tx_mac_data (Tx_mac_data ),
-.Tx_mac_BE (Tx_mac_BE ),
-.Tx_mac_sop (Tx_mac_sop ),
-.Tx_mac_eop (Tx_mac_eop ),
- //host interface (//host interface ),
-.FullDuplex (FullDuplex ),
-.Tx_Hwmark (Tx_Hwmark ),
-.Tx_Lwmark (Tx_Lwmark ),
-.debug0(debug0),
-.debug1(debug1)
-);
-
-Random_gen U_Random_gen(
-.Reset (Reset ),
-.Clk (Clk ),
-.Init (Random_init ),
-.RetryCnt (RetryCnt ),
-.Random_time_meet (Random_time_meet )
-);
-
-endmodule
diff --git a/eth/rtl/verilog/MAC_tx/CRC_gen.v b/eth/rtl/verilog/MAC_tx/CRC_gen.v deleted file mode 100644 index 4a16e7c36..000000000 --- a/eth/rtl/verilog/MAC_tx/CRC_gen.v +++ /dev/null @@ -1,169 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// CRC_gen.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: CRC_gen.v,v $
-// Revision 1.3 2006/01/19 14:07:54 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:17 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator
-// no message
-//
-
-module CRC_gen (
-Reset ,
-Clk ,
-Init ,
-Frame_data ,
-Data_en ,
-CRC_rd ,
-CRC_end ,
-CRC_out
-
-);
-input Reset ;
-input Clk ;
-input Init ;
-input [7:0] Frame_data ;
-input Data_en ;
-input CRC_rd ;
-output [7:0] CRC_out ;
-output CRC_end ;
-
-//******************************************************************************
-//internal signals
-//******************************************************************************
-reg [7:0] CRC_out ;
-reg [31:0] CRC_reg;
-reg CRC_end;
-reg [3:0] Counter;
-//******************************************************************************
-//******************************************************************************
-//input data width is 8bit, and the first bit is bit[0]
-function[31:0] NextCRC;
- input[7:0] D;
- input[31:0] C;
- reg[31:0] NewCRC;
- begin
- NewCRC[0]=C[24]^C[30]^D[1]^D[7];
- NewCRC[1]=C[25]^C[31]^D[0]^D[6]^C[24]^C[30]^D[1]^D[7];
- NewCRC[2]=C[26]^D[5]^C[25]^C[31]^D[0]^D[6]^C[24]^C[30]^D[1]^D[7];
- NewCRC[3]=C[27]^D[4]^C[26]^D[5]^C[25]^C[31]^D[0]^D[6];
- NewCRC[4]=C[28]^D[3]^C[27]^D[4]^C[26]^D[5]^C[24]^C[30]^D[1]^D[7];
- NewCRC[5]=C[29]^D[2]^C[28]^D[3]^C[27]^D[4]^C[25]^C[31]^D[0]^D[6]^C[24]^C[30]^D[1]^D[7];
- NewCRC[6]=C[30]^D[1]^C[29]^D[2]^C[28]^D[3]^C[26]^D[5]^C[25]^C[31]^D[0]^D[6];
- NewCRC[7]=C[31]^D[0]^C[29]^D[2]^C[27]^D[4]^C[26]^D[5]^C[24]^D[7];
- NewCRC[8]=C[0]^C[28]^D[3]^C[27]^D[4]^C[25]^D[6]^C[24]^D[7];
- NewCRC[9]=C[1]^C[29]^D[2]^C[28]^D[3]^C[26]^D[5]^C[25]^D[6];
- NewCRC[10]=C[2]^C[29]^D[2]^C[27]^D[4]^C[26]^D[5]^C[24]^D[7];
- NewCRC[11]=C[3]^C[28]^D[3]^C[27]^D[4]^C[25]^D[6]^C[24]^D[7];
- NewCRC[12]=C[4]^C[29]^D[2]^C[28]^D[3]^C[26]^D[5]^C[25]^D[6]^C[24]^C[30]^D[1]^D[7];
- NewCRC[13]=C[5]^C[30]^D[1]^C[29]^D[2]^C[27]^D[4]^C[26]^D[5]^C[25]^C[31]^D[0]^D[6];
- NewCRC[14]=C[6]^C[31]^D[0]^C[30]^D[1]^C[28]^D[3]^C[27]^D[4]^C[26]^D[5];
- NewCRC[15]=C[7]^C[31]^D[0]^C[29]^D[2]^C[28]^D[3]^C[27]^D[4];
- NewCRC[16]=C[8]^C[29]^D[2]^C[28]^D[3]^C[24]^D[7];
- NewCRC[17]=C[9]^C[30]^D[1]^C[29]^D[2]^C[25]^D[6];
- NewCRC[18]=C[10]^C[31]^D[0]^C[30]^D[1]^C[26]^D[5];
- NewCRC[19]=C[11]^C[31]^D[0]^C[27]^D[4];
- NewCRC[20]=C[12]^C[28]^D[3];
- NewCRC[21]=C[13]^C[29]^D[2];
- NewCRC[22]=C[14]^C[24]^D[7];
- NewCRC[23]=C[15]^C[25]^D[6]^C[24]^C[30]^D[1]^D[7];
- NewCRC[24]=C[16]^C[26]^D[5]^C[25]^C[31]^D[0]^D[6];
- NewCRC[25]=C[17]^C[27]^D[4]^C[26]^D[5];
- NewCRC[26]=C[18]^C[28]^D[3]^C[27]^D[4]^C[24]^C[30]^D[1]^D[7];
- NewCRC[27]=C[19]^C[29]^D[2]^C[28]^D[3]^C[25]^C[31]^D[0]^D[6];
- NewCRC[28]=C[20]^C[30]^D[1]^C[29]^D[2]^C[26]^D[5];
- NewCRC[29]=C[21]^C[31]^D[0]^C[30]^D[1]^C[27]^D[4];
- NewCRC[30]=C[22]^C[31]^D[0]^C[28]^D[3];
- NewCRC[31]=C[23]^C[29]^D[2];
- NextCRC=NewCRC;
- end
- endfunction
-//******************************************************************************
-
-always @ (posedge Clk) // or posedge Reset)
-// if (Reset)
-// CRC_reg <=32'hffffffff;
-// else
- if (Init)
- CRC_reg <=32'hffffffff;
- else if (Data_en)
- CRC_reg <=NextCRC(Frame_data,CRC_reg);
- else if (CRC_rd)
- CRC_reg <={CRC_reg[23:0],8'hff};
-
-always @ (CRC_rd or CRC_reg)
-// if (CRC_rd)
- CRC_out <=~{
- CRC_reg[24],
- CRC_reg[25],
- CRC_reg[26],
- CRC_reg[27],
- CRC_reg[28],
- CRC_reg[29],
- CRC_reg[30],
- CRC_reg[31]
- };
-// else
-// CRC_out <=0;
-
-//caculate CRC out length ,4 cycles
-//CRC_end aligned to last CRC checksum data
-always @(posedge Clk or posedge Reset)
- if (Reset)
- Counter <=0;
- else if (!CRC_rd)
- Counter <=0;
- else
- Counter <=Counter + 1;
-
-always @ (Counter)
- if (Counter==3)
- CRC_end=1;
- else
- CRC_end=0;
-
-endmodule
-
-
diff --git a/eth/rtl/verilog/MAC_tx/MAC_tx_FF.v b/eth/rtl/verilog/MAC_tx/MAC_tx_FF.v deleted file mode 100644 index e62346fb7..000000000 --- a/eth/rtl/verilog/MAC_tx/MAC_tx_FF.v +++ /dev/null @@ -1,722 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// MAC_tx_FF.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-
-module MAC_tx_FF
- #(parameter TX_FF_DEPTH = 9)
- (input Reset ,
- input Clk_MAC ,
- input Clk_SYS ,
- //MAC_tx_ctrl
- output reg [7:0]Fifo_data ,
- input Fifo_rd ,
- input Fifo_rd_finish ,
- input Fifo_rd_retry ,
- output reg Fifo_eop ,
- output reg Fifo_da ,
- output reg Fifo_ra ,
- output reg Fifo_data_err_empty ,
- output Fifo_data_err_full ,
- //user interface
- output reg Tx_mac_wa ,
- input Tx_mac_wr ,
- input [31:0] Tx_mac_data ,
- input [1:0] Tx_mac_BE ,//big endian
- input Tx_mac_sop ,
- input Tx_mac_eop ,
- //host interface
- input FullDuplex ,
- input [4:0] Tx_Hwmark ,
- input [4:0] Tx_Lwmark ,
- output [31:0] debug0,
- output [31:0] debug1
- );
-
-//******************************************************************************
-//internal signals
-//******************************************************************************
-localparam MAC_byte3 =4'd00;
-localparam MAC_byte2 =4'd01;
-localparam MAC_byte1 =4'd02;
-localparam MAC_byte0 =4'd03;
-localparam MAC_wait_finish =4'd04;
-localparam MAC_retry =4'd08;
-localparam MAC_idle =4'd09;
-localparam MAC_FFEmpty =4'd10;
-localparam MAC_FFEmpty_drop =4'd11;
-localparam MAC_pkt_sub =4'd12;
-localparam MAC_FF_Err =4'd13;
-
-
-reg [3:0] Next_state_MAC ;
-
-
-localparam SYS_idle =4'd0;
-localparam SYS_WaitSop =4'd1;
-localparam SYS_SOP =4'd2;
-localparam SYS_MOP =4'd3;
-localparam SYS_DROP =4'd4;
-localparam SYS_EOP_ok =4'd5;
-localparam SYS_FFEmpty =4'd6;
-localparam SYS_EOP_err =4'd7;
-localparam SYS_SOP_err =4'd8;
-
-reg [3:0] Next_state_SYS;
-
-reg [TX_FF_DEPTH-1:0] Add_wr ;
-reg [TX_FF_DEPTH-1:0] Add_wr_ungray ;
-reg [TX_FF_DEPTH-1:0] Add_wr_gray ;
-reg [TX_FF_DEPTH-1:0] Add_wr_gray_dl1 ;
-reg [TX_FF_DEPTH-1:0] Add_wr_gray_dl2 ;
-
-reg [TX_FF_DEPTH-1:0] Add_rd ;
-reg [TX_FF_DEPTH-1:0] Add_rd_reg ;
-reg [TX_FF_DEPTH-1:0] Add_rd_gray ;
-reg [TX_FF_DEPTH-1:0] Add_rd_gray_dl1 ;
-reg [TX_FF_DEPTH-1:0] Add_rd_gray_dl2 ;
-reg [TX_FF_DEPTH-1:0] Add_rd_ungray ;
-wire[35:0] Din ;
-wire[35:0] Dout ;
-reg Wr_en ;
-wire[TX_FF_DEPTH-1:0] Add_wr_pluse;
-wire[TX_FF_DEPTH-1:0] Add_wr_pluse_pluse;
-reg [TX_FF_DEPTH-1:TX_FF_DEPTH-5] Add_rd_reg_dl1;
-
-reg [3:0] Current_state_MAC;
-reg [3:0] Current_state_MAC_reg;
-reg [3:0] Current_state_SYS;
-reg Full;
-reg AlmostFull;
-reg Empty;
-reg [35:0] Dout_reg;
-reg Packet_number_sub_edge;
-reg Packet_number_add;
-reg [5:0] Packet_number_inFF;
-reg [5:0] Packet_number_inFF_reg;
-reg Dout_reg_en;
-reg Add_rd_add;
-
-
-reg Tx_mac_wr_dl1 ;
-reg [31:0] Tx_mac_data_dl1 ;
-reg [1:0] Tx_mac_BE_dl1 ;
-reg FF_FullErr ;
-wire[1:0] Dout_BE ;
-wire Dout_eop ;
-wire Dout_err ;
-wire[31:0] Dout_data ;
-reg Packet_number_sub_dl1 ;
-reg Packet_number_sub_dl2 ;
-reg [4:0] Fifo_data_count ;
-reg Fifo_ra_tmp ;
-reg Pkt_sub_apply_tmp ;
-reg Pkt_sub_apply ;
-reg Add_rd_reg_rdy_tmp ;
-reg Add_rd_reg_rdy ;
-reg Add_rd_reg_rdy_dl1 ;
-reg Add_rd_reg_rdy_dl2 ;
-reg [4:0] Tx_Hwmark_pl ;
-reg [4:0] Tx_Lwmark_pl ;
-reg Add_rd_jump_tmp ;
-reg Add_rd_jump_tmp_pl1 ;
-reg Add_rd_jump ;
-reg Add_rd_jump_wr_pl1 ;
-
-//******************************************************************************
-//write data to from FF .
-//domain Clk_SYS
-//******************************************************************************
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Current_state_SYS <=SYS_idle;
- else
- Current_state_SYS <=Next_state_SYS;
-
-always @ (Current_state_SYS or Tx_mac_wr or Tx_mac_sop or Full or AlmostFull
- or Tx_mac_eop )
- case (Current_state_SYS)
- SYS_idle:
- if (Tx_mac_wr&&Tx_mac_sop&&!Full)
- Next_state_SYS =SYS_SOP;
- else
- Next_state_SYS =Current_state_SYS ;
- SYS_SOP:
- Next_state_SYS =SYS_MOP;
- SYS_MOP:
- if (AlmostFull)
- Next_state_SYS =SYS_DROP;
- else if (Tx_mac_wr&&Tx_mac_sop)
- Next_state_SYS =SYS_SOP_err;
- else if (Tx_mac_wr&&Tx_mac_eop)
- Next_state_SYS =SYS_EOP_ok;
- else
- Next_state_SYS =Current_state_SYS ;
- SYS_EOP_ok:
- if (Tx_mac_wr&&Tx_mac_sop)
- Next_state_SYS =SYS_SOP;
- else
- Next_state_SYS =SYS_idle;
- SYS_EOP_err:
- if (Tx_mac_wr&&Tx_mac_sop)
- Next_state_SYS =SYS_SOP;
- else
- Next_state_SYS =SYS_idle;
- SYS_SOP_err:
- Next_state_SYS =SYS_DROP;
- SYS_DROP: //FIFO overflow
- if (Tx_mac_wr&&Tx_mac_eop)
- Next_state_SYS =SYS_EOP_err;
- else
- Next_state_SYS =Current_state_SYS ;
- default:
- Next_state_SYS =SYS_idle;
- endcase
-
-//delay signals
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- begin
- Tx_mac_wr_dl1 <=0;
- Tx_mac_data_dl1 <=0;
- Tx_mac_BE_dl1 <=0;
- end
- else
- begin
- Tx_mac_wr_dl1 <=Tx_mac_wr ;
- Tx_mac_data_dl1 <=Tx_mac_data ;
- Tx_mac_BE_dl1 <=Tx_mac_BE ;
- end
-
-always @(Current_state_SYS)
- if (Current_state_SYS==SYS_EOP_err)
- FF_FullErr =1;
- else
- FF_FullErr =0;
-
-reg Tx_mac_eop_gen;
-
-always @(Current_state_SYS)
- if (Current_state_SYS==SYS_EOP_err||Current_state_SYS==SYS_EOP_ok)
- Tx_mac_eop_gen =1;
- else
- Tx_mac_eop_gen =0;
-
-assign Din={Tx_mac_eop_gen,FF_FullErr,Tx_mac_BE_dl1,Tx_mac_data_dl1};
-
-always @(Current_state_SYS or Tx_mac_wr_dl1)
- if ((Current_state_SYS==SYS_SOP||Current_state_SYS==SYS_EOP_ok||
- Current_state_SYS==SYS_MOP||Current_state_SYS==SYS_EOP_err)&&Tx_mac_wr_dl1)
- Wr_en = 1;
- else
- Wr_en = 0;
-
-
-//
-
-
-always @ (posedge Reset or posedge Clk_SYS)
- if (Reset)
- Add_wr_gray <=0;
- else
- begin : Add_wr_gray_loop
- integer i;
- Add_wr_gray[TX_FF_DEPTH-1] <=Add_wr[TX_FF_DEPTH-1];
- for (i=TX_FF_DEPTH-2;i>=0;i=i-1)
- Add_wr_gray[i] <=Add_wr[i+1]^Add_wr[i];
- end
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Add_rd_gray_dl1 <=0;
- else
- Add_rd_gray_dl1 <=Add_rd_gray;
-
- always @(posedge Clk_SYS or posedge Reset)
- if (Reset)
- Add_rd_gray_dl2 <= 0;
- else
- Add_rd_gray_dl2 <= Add_rd_gray_dl1;
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Add_rd_jump_wr_pl1 <=0;
- else
- Add_rd_jump_wr_pl1 <=Add_rd_jump;
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Add_rd_ungray =0;
- else if (!Add_rd_jump_wr_pl1)
- begin : Add_rd_ungray_loop
- integer i;
- Add_rd_ungray[TX_FF_DEPTH-1] = Add_rd_gray_dl2[TX_FF_DEPTH-1];
- for (i=TX_FF_DEPTH-2;i>=0;i=i-1)
- Add_rd_ungray[i] = Add_rd_ungray[i+1]^Add_rd_gray_dl2[i];
- end
-
-assign Add_wr_pluse =Add_wr+1;
-assign Add_wr_pluse_pluse =Add_wr+4;
-
-always @ (Add_wr_pluse or Add_rd_ungray)
- if (Add_wr_pluse==Add_rd_ungray)
- Full =1;
- else
- Full =0;
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- AlmostFull <=0;
- else if (Add_wr_pluse_pluse==Add_rd_ungray)
- AlmostFull <=1;
- else
- AlmostFull <=0;
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Add_wr <= 0;
- else if (Wr_en&&!Full)
- Add_wr <= Add_wr +1;
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- begin
- Packet_number_sub_dl1 <=0;
- Packet_number_sub_dl2 <=0;
- end
- else
- begin
- Packet_number_sub_dl1 <=Pkt_sub_apply;
- Packet_number_sub_dl2 <=Packet_number_sub_dl1;
- end
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Packet_number_sub_edge <=0;
- else if (Packet_number_sub_dl1&!Packet_number_sub_dl2)
- Packet_number_sub_edge <=1;
- else
- Packet_number_sub_edge <=0;
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Packet_number_add <=0;
- else if (Current_state_SYS==SYS_EOP_ok||Current_state_SYS==SYS_EOP_err)
- Packet_number_add <=1;
- else
- Packet_number_add <=0;
-
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Packet_number_inFF <=0;
- else if (Packet_number_add&&!Packet_number_sub_edge)
- Packet_number_inFF <=Packet_number_inFF + 1'b1;
- else if (!Packet_number_add&&Packet_number_sub_edge)
- Packet_number_inFF <=Packet_number_inFF - 1'b1;
-
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Packet_number_inFF_reg <=0;
- else
- Packet_number_inFF_reg <=Packet_number_inFF;
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- begin
- Add_rd_reg_rdy_dl1 <=0;
- Add_rd_reg_rdy_dl2 <=0;
- end
- else
- begin
- Add_rd_reg_rdy_dl1 <=Add_rd_reg_rdy;
- Add_rd_reg_rdy_dl2 <=Add_rd_reg_rdy_dl1;
- end
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Add_rd_reg_dl1 <=0;
- else if (Add_rd_reg_rdy_dl1&!Add_rd_reg_rdy_dl2)
- Add_rd_reg_dl1 <=Add_rd_reg[TX_FF_DEPTH-1:TX_FF_DEPTH-5];
-
-
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Fifo_data_count <=0;
- else if (FullDuplex)
- Fifo_data_count <=Add_wr[TX_FF_DEPTH-1:TX_FF_DEPTH-5]-Add_rd_ungray[TX_FF_DEPTH-1:TX_FF_DEPTH-5];
- else
- Fifo_data_count <=Add_wr[TX_FF_DEPTH-1:TX_FF_DEPTH-5]-Add_rd_reg_dl1[TX_FF_DEPTH-1:TX_FF_DEPTH-5]; //for half duplex backoff requirement
-
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Fifo_ra_tmp <=0;
- else if (Packet_number_inFF_reg>=1||Fifo_data_count>=Tx_Lwmark)
- Fifo_ra_tmp <=1;
- else
- Fifo_ra_tmp <=0;
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- begin
- Tx_Hwmark_pl <=0;
- Tx_Lwmark_pl <=0;
- end
- else
- begin
- Tx_Hwmark_pl <=Tx_Hwmark;
- Tx_Lwmark_pl <=Tx_Lwmark;
- end
-
-always @ (posedge Clk_SYS or posedge Reset)
- if (Reset)
- Tx_mac_wa <=0;
- else if (Fifo_data_count>=Tx_Hwmark_pl)
- Tx_mac_wa <=0;
- else if (Fifo_data_count<Tx_Lwmark_pl)
- Tx_mac_wa <=1;
-
-//******************************************************************************
-//rd data to from FF .
-//domain Clk_MAC
-//******************************************************************************
-reg[35:0] Dout_dl1;
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Dout_dl1 <=0;
- else
- Dout_dl1 <=Dout;
-
-always @ (Current_state_MAC or Next_state_MAC)
- if ((Current_state_MAC==MAC_idle||Current_state_MAC==MAC_byte0)&&Next_state_MAC==MAC_byte3)
- Dout_reg_en =1;
- else
- Dout_reg_en =0;
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Dout_reg <=0;
- else if (Dout_reg_en)
- Dout_reg <=Dout_dl1;
-
-assign {Dout_eop,Dout_err,Dout_BE,Dout_data}=Dout_reg;
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Current_state_MAC <=MAC_idle;
- else
- Current_state_MAC <=Next_state_MAC;
-
-always @ (Current_state_MAC or Fifo_rd or Dout_BE or Dout_eop or Fifo_rd_retry
- or Fifo_rd_finish or Empty or Fifo_rd or Fifo_eop)
- case (Current_state_MAC)
- MAC_idle:
- if (Empty&&Fifo_rd)
- Next_state_MAC=MAC_FF_Err;
- else if (Fifo_rd)
- Next_state_MAC=MAC_byte3;
- else
- Next_state_MAC=Current_state_MAC;
- MAC_byte3:
- if (Fifo_rd_retry)
- Next_state_MAC=MAC_retry;
- else if (Fifo_eop)
- Next_state_MAC=MAC_wait_finish;
- else if (Fifo_rd&&!Fifo_eop)
- Next_state_MAC=MAC_byte2;
- else
- Next_state_MAC=Current_state_MAC;
- MAC_byte2:
- if (Fifo_rd_retry)
- Next_state_MAC=MAC_retry;
- else if (Fifo_eop)
- Next_state_MAC=MAC_wait_finish;
- else if (Fifo_rd&&!Fifo_eop)
- Next_state_MAC=MAC_byte1;
- else
- Next_state_MAC=Current_state_MAC;
- MAC_byte1:
- if (Fifo_rd_retry)
- Next_state_MAC=MAC_retry;
- else if (Fifo_eop)
- Next_state_MAC=MAC_wait_finish;
- else if (Fifo_rd&&!Fifo_eop)
- Next_state_MAC=MAC_byte0;
- else
- Next_state_MAC=Current_state_MAC;
- MAC_byte0:
- if (Empty&&Fifo_rd&&!Fifo_eop)
- Next_state_MAC=MAC_FFEmpty;
- else if (Fifo_rd_retry)
- Next_state_MAC=MAC_retry;
- else if (Fifo_eop)
- Next_state_MAC=MAC_wait_finish;
- else if (Fifo_rd&&!Fifo_eop)
- Next_state_MAC=MAC_byte3;
- else
- Next_state_MAC=Current_state_MAC;
- MAC_retry:
- Next_state_MAC=MAC_idle;
- MAC_wait_finish:
- if (Fifo_rd_finish)
- Next_state_MAC=MAC_pkt_sub;
- else
- Next_state_MAC=Current_state_MAC;
- MAC_pkt_sub:
- Next_state_MAC=MAC_idle;
- MAC_FFEmpty:
- if (!Empty)
- Next_state_MAC=MAC_byte3;
- else
- Next_state_MAC=Current_state_MAC;
- MAC_FF_Err: //stopped state-machine need change
- Next_state_MAC=Current_state_MAC;
- default
- Next_state_MAC=MAC_idle;
- endcase
-//
-always @ (posedge Reset or posedge Clk_MAC)
- if (Reset)
- Add_rd_gray <=0;
- else
- begin : Add_rd_gray_loop
- integer i;
- Add_rd_gray[TX_FF_DEPTH-1] <=Add_rd[TX_FF_DEPTH-1];
- for (i=TX_FF_DEPTH-2;i>=0;i=i-1)
- Add_rd_gray[i] <= Add_rd[i+1]^Add_rd[i];
- end
-//
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Add_wr_gray_dl1 <=0;
- else
- Add_wr_gray_dl1 <=Add_wr_gray;
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Add_wr_gray_dl2 <=0;
- else
- Add_wr_gray_dl2 <=Add_wr_gray_dl1;
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Add_wr_ungray =0;
- else
- begin : Add_wr_ungray_loop
- integer i;
- Add_wr_ungray[TX_FF_DEPTH-1] = Add_wr_gray_dl2[TX_FF_DEPTH-1];
- for (i=TX_FF_DEPTH-2;i>=0;i=i-1)
- Add_wr_ungray[i] = Add_wr_ungray[i+1]^Add_wr_gray_dl2[i];
- end
-
-//empty
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Empty <=1;
- else if (Add_rd==Add_wr_ungray)
- Empty <=1;
- else
- Empty <=0;
-
-//ra
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Fifo_ra <=0;
- else
- Fifo_ra <=Fifo_ra_tmp;
-
-
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Pkt_sub_apply_tmp <=0;
- else if (Current_state_MAC==MAC_pkt_sub)
- Pkt_sub_apply_tmp <=1;
- else
- Pkt_sub_apply_tmp <=0;
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Pkt_sub_apply <=0;
- else if ((Current_state_MAC==MAC_pkt_sub)||Pkt_sub_apply_tmp)
- Pkt_sub_apply <=1;
- else
- Pkt_sub_apply <=0;
-
-//reg Add_rd for collison retry
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Add_rd_reg <=0;
- else if (Fifo_rd_finish)
- Add_rd_reg <=Add_rd;
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Add_rd_reg_rdy_tmp <=0;
- else if (Fifo_rd_finish)
- Add_rd_reg_rdy_tmp <=1;
- else
- Add_rd_reg_rdy_tmp <=0;
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Add_rd_reg_rdy <=0;
- else if (Fifo_rd_finish||Add_rd_reg_rdy_tmp)
- Add_rd_reg_rdy <=1;
- else
- Add_rd_reg_rdy <=0;
-
-
-always @ (Current_state_MAC or Next_state_MAC)
- if ((Current_state_MAC==MAC_idle||Current_state_MAC==MAC_byte0)&&Next_state_MAC==MAC_byte3)
- Add_rd_add =1;
- else
- Add_rd_add =0;
-
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Add_rd <=0;
- else if (Current_state_MAC==MAC_retry)
- Add_rd <= Add_rd_reg;
- else if (Add_rd_add)
- Add_rd <= Add_rd + 1;
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Add_rd_jump_tmp <=0;
- else if (Current_state_MAC==MAC_retry)
- Add_rd_jump_tmp <=1;
- else
- Add_rd_jump_tmp <=0;
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Add_rd_jump_tmp_pl1 <=0;
- else
- Add_rd_jump_tmp_pl1 <=Add_rd_jump_tmp;
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Add_rd_jump <=0;
- else if (Current_state_MAC==MAC_retry)
- Add_rd_jump <=1;
- else if (Add_rd_jump_tmp_pl1)
- Add_rd_jump <=0;
-
-//gen Fifo_data
-
-
-always @ (Dout_data or Current_state_MAC)
- case (Current_state_MAC)
- MAC_byte3:
- Fifo_data =Dout_data[31:24];
- MAC_byte2:
- Fifo_data =Dout_data[23:16];
- MAC_byte1:
- Fifo_data =Dout_data[15:8];
- MAC_byte0:
- Fifo_data =Dout_data[7:0];
- default:
- Fifo_data =0;
- endcase
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Fifo_da <=0;
- else if ((Current_state_MAC==MAC_byte0||Current_state_MAC==MAC_byte1||
- Current_state_MAC==MAC_byte2||Current_state_MAC==MAC_byte3)&&Fifo_rd&&!Fifo_eop)
- Fifo_da <=1;
- else
- Fifo_da <=0;
-
-//gen Fifo_data_err_empty
-assign Fifo_data_err_full=Dout_err;
-//gen Fifo_data_err_empty
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Current_state_MAC_reg <=0;
- else
- Current_state_MAC_reg <=Current_state_MAC;
-
-always @ (posedge Clk_MAC or posedge Reset)
- if (Reset)
- Fifo_data_err_empty <=0;
- else if (Current_state_MAC_reg==MAC_FFEmpty)
- Fifo_data_err_empty <=1;
- else
- Fifo_data_err_empty <=0;
-
-//always @ (posedge Clk_MAC)
-// if (Current_state_MAC_reg==MAC_FF_Err)
-// begin
-// $finish(2);
-// $display("mac_tx_FF meet error status at time :%t",$time);
-// end
-
-//gen Fifo_eop aligned to last valid data byte
-always @ ( Current_state_MAC or Dout_eop or Dout_BE )
- if ( ( ( Current_state_MAC==MAC_byte0 && Dout_BE==2'b00 ) ||
- ( Current_state_MAC==MAC_byte1 && Dout_BE==2'b11 ) ||
- ( Current_state_MAC==MAC_byte2 && Dout_BE==2'b10 ) ||
- ( Current_state_MAC==MAC_byte3 && Dout_BE==2'b01 ) ) && Dout_eop )
- Fifo_eop = 1;
- else
- Fifo_eop = 0;
-
- // Dual port RAM for FIFO
- ram_2port #(.DWIDTH(36),.AWIDTH(TX_FF_DEPTH)) mac_tx_ff_ram
- (.clka(Clk_SYS),.ena(1'b1),.wea(Wr_en),.addra(Add_wr),.dia(Din),.doa(),
- .clkb(Clk_MAC),.enb(1'b1),.web(1'b0),.addrb(Add_rd),.dib(36'b0),.dob(Dout) );
-
- assign debug0 =
- { { 5'd0, Empty, Full, AlmostFull },
- { Current_state_SYS, Current_state_MAC },
- { Fifo_rd, Fifo_rd_finish, Fifo_rd_retry, Fifo_eop, Fifo_da, Fifo_ra, Fifo_data_err_empty, Fifo_data_err_full },
- { 2'b0, Dout_BE, Tx_mac_wa, Tx_mac_wr, Tx_mac_sop, Tx_mac_eop} };
-
- assign debug1 =
- { { 8'd0 },
- { 8'd0 },
- { 8'd0 },
- { 8'd0 } };
-
-endmodule // MAC_tx_FF
diff --git a/eth/rtl/verilog/MAC_tx/MAC_tx_addr_add.v b/eth/rtl/verilog/MAC_tx/MAC_tx_addr_add.v deleted file mode 100644 index 76026ce06..000000000 --- a/eth/rtl/verilog/MAC_tx/MAC_tx_addr_add.v +++ /dev/null @@ -1,128 +0,0 @@ -// ////////////////////////////////////////////////////////////////////
-// // ////
-// // MAC_tx_addr_add.v ////
-// // ////
-// // This file is part of the Ethernet IP core project ////
-// // http://www.opencores.org/projects.cgi/wr_en/ethernet_tri_mode/////
-// // ////
-// // Author(s): ////
-// // - Jon Gao (gaojon@yahoo.com) ////
-// // ////
-// // ////
-// ////////////////////////////////////////////////////////////////////
-// // ////
-// // Copyright (C) 2001 Authors ////
-// // ////
-// // This source file may be used and distributed without ////
-// // restriction provided that this copyright statement is not ////
-// // removed from the file and that any derivative work contains ////
-// // the original copyright notice and the associated disclaimer. ////
-// // ////
-// // This source file is free software; you can redistribute it ////
-// // and/or modify it under the terms of the GNU Lesser General ////
-// // Public License as published by the Free Software Foundation; ////
-// // either version 2.1 of the License, or (at your option) any ////
-// // later version. ////
-// // ////
-// // This source is distributed in the hope that it will be ////
-// // useful, but WITHOUT ANY WARRANTY; without even the implied ////
-// // warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-// // PURPOSE. See the GNU Lesser General Public License for more ////
-// // details. ////
-// // ////
-// // You should have received a copy of the GNU Lesser General ////
-// // Public License along with this source; if not, download it ////
-// // from http://www.opencores.org/lgpl.shtml ////
-// // ////
-// ////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: MAC_tx_addr_add.v,v $
-// Revision 1.3 2006/01/19 14:07:54 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:18 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator
-// no message
-//
-
-module MAC_tx_addr_add
- (Reset ,
- Clk ,
- MAC_tx_addr_init ,
- MAC_tx_addr_rd ,
- MAC_tx_addr_data ,
- //CPU ,
- MAC_add_prom_data ,
- MAC_add_prom_add ,
- MAC_add_prom_wr
- );
-
- input Reset ;
- input Clk ;
- input MAC_tx_addr_rd ;
- input MAC_tx_addr_init ;
- output [7:0] MAC_tx_addr_data ;
- //CPU ;
- input [7:0] MAC_add_prom_data ;
- input [2:0] MAC_add_prom_add ;
- input MAC_add_prom_wr ;
-
- // ******************************************************************************
- // internal signals
- // ******************************************************************************
- reg [2:0] add_rd;
- wire [2:0] add_wr;
- wire [7:0] din;
- //wire [7:0] dout;
- reg [7:0] dout;
- wire wr_en;
- reg MAC_add_prom_wr_dl1;
- reg MAC_add_prom_wr_dl2;
- // ******************************************************************************
- // write data from cpu to prom
- // ******************************************************************************
- always @ (posedge Clk or posedge Reset)
- if (Reset)
- begin
- MAC_add_prom_wr_dl1 <=0;
- MAC_add_prom_wr_dl2 <=0;
- end
- else
- begin
- MAC_add_prom_wr_dl1 <=MAC_add_prom_wr;
- MAC_add_prom_wr_dl2 <=MAC_add_prom_wr_dl1;
- end
-
- assign wr_en =MAC_add_prom_wr_dl1&!MAC_add_prom_wr_dl2;
- assign add_wr =MAC_add_prom_add;
- assign din =MAC_add_prom_data;
-
- // ******************************************************************************
- // read data from cpu to prom
- // ******************************************************************************
- always @ (posedge Clk or posedge Reset)
- if (Reset)
- add_rd <=0;
- else if (MAC_tx_addr_init)
- add_rd <=0;
- else if (MAC_tx_addr_rd)
- add_rd <=add_rd + 1;
- assign MAC_tx_addr_data=dout;
- // ******************************************************************************
- // b port for read ,a port for write .
- // ******************************************************************************
-
- reg [7:0] address_ram [0:7];
- always @(posedge Clk)
- if(wr_en)
- address_ram[add_wr] <= din;
-
- always @(posedge Clk)
- dout <= address_ram[add_rd];
-
-endmodule // MAC_tx_addr_add
diff --git a/eth/rtl/verilog/MAC_tx/MAC_tx_ctrl.v b/eth/rtl/verilog/MAC_tx/MAC_tx_ctrl.v deleted file mode 100644 index 8da2e253c..000000000 --- a/eth/rtl/verilog/MAC_tx/MAC_tx_ctrl.v +++ /dev/null @@ -1,656 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// MAC_tx_ctrl.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: MAC_tx_Ctrl.v,v $
-// Revision 1.4 2006/06/25 04:58:56 maverickist
-// no message
-//
-// Revision 1.3 2006/01/19 14:07:54 maverickist
-// verification is complete.
-//
-// Revision 1.3 2005/12/16 06:44:17 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.2 2005/12/13 12:15:38 Administrator
-// no message
-//
-// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator
-// no message
-//
-
-module MAC_tx_ctrl (
-Reset ,
-Clk ,
-//CRC_gen Interface
-CRC_init ,
-Frame_data ,
-Data_en ,
-CRC_rd ,
-CRC_end ,
-CRC_out ,
-//Ramdon_gen interfac
-Random_init ,
-RetryCnt ,
-Random_time_meet ,
-//flow control
-pause_apply ,
-pause_quanta_sub ,
-xoff_gen ,
-xoff_gen_complete ,
-xon_gen ,
-xon_gen_complete ,
-//MAC_tx_FF
-Fifo_data ,
-Fifo_rd ,
-Fifo_eop ,
-Fifo_da ,
-Fifo_rd_finish ,
-Fifo_rd_retry ,
-Fifo_ra ,
-Fifo_data_err_empty ,
-Fifo_data_err_full ,
-//RMII
-TxD ,
-TxEn ,
-CRS ,
-//MAC_tx_addr_add
-MAC_tx_addr_rd ,
-MAC_tx_addr_data ,
-MAC_tx_addr_init ,
-//RMON
-Tx_pkt_type_rmon ,
-Tx_pkt_length_rmon ,
-Tx_apply_rmon ,
-Tx_pkt_err_type_rmon,
-//CPU
-pause_quanta_set ,
-MAC_tx_add_en ,
-FullDuplex ,
-MaxRetry ,
-IFGset
-);
-
-input Reset ;
-input Clk ;
- //CRC_gen Interface
-output CRC_init ;
-output [7:0] Frame_data ;
-output Data_en ;
-output CRC_rd ;
-input CRC_end ;
-input [7:0] CRC_out ;
- //Ramdon_gen interface
-output Random_init ;
-output [3:0] RetryCnt ;
-input Random_time_meet ;//levle hight indicate random time passed away
- //flow control
-input pause_apply ;
-output pause_quanta_sub ;
-input xoff_gen ;
-output xoff_gen_complete ;
-input xon_gen ;
-output xon_gen_complete ;
- //MAC_rx_FF
-input [7:0] Fifo_data ;
-output Fifo_rd ;
-input Fifo_eop ;
-input Fifo_da ;
-output Fifo_rd_finish ;
-output Fifo_rd_retry ;
-input Fifo_ra ;
-input Fifo_data_err_empty ;
-input Fifo_data_err_full ;
- //RMII
-output [7:0] TxD ;
-output TxEn ;
-input CRS ;
- //MAC_tx_addr_add
-output MAC_tx_addr_init ;
-output MAC_tx_addr_rd ;
-input [7:0] MAC_tx_addr_data ;
- //RMON
-output [2:0] Tx_pkt_type_rmon ;
-output [15:0] Tx_pkt_length_rmon ;
-output Tx_apply_rmon ;
-output [2:0] Tx_pkt_err_type_rmon;
- //CPU
-input [15:0] pause_quanta_set ;
-input MAC_tx_add_en ;
-input FullDuplex ;
-input [3:0] MaxRetry ;
-input [5:0] IFGset ;
-//******************************************************************************
-//internal signals
-//******************************************************************************
-parameter StateIdle =4'd00;
-parameter StatePreamble =4'd01;
-parameter StateSFD =4'd02;
-parameter StateData =4'd03;
-parameter StatePause =4'd04;
-parameter StatePAD =4'd05;
-parameter StateFCS =4'd06;
-parameter StateIFG =4'd07;
-parameter StateJam =4'd08;
-parameter StateBackOff =4'd09;
-parameter StateJamDrop =4'd10;
-parameter StateFFEmptyDrop =4'd11;
-parameter StateSwitchNext =4'd12;
-parameter StateDefer =4'd13;
-parameter StateSendPauseFrame =4'd14;
-
-reg [3:0] Current_state;
-reg [3:0] Next_state;
-reg [5:0] IFG_counter;
-reg [4:0] Preamble_counter;//
-reg [7:0] TxD_tmp ;
-reg TxEn_tmp ;
-reg [15:0] Tx_pkt_length_rmon ;
-reg Tx_apply_rmon ;
-reg [2:0] Tx_pkt_err_type_rmon;
-reg [3:0] RetryCnt ;
-reg Random_init ;
-reg Fifo_rd_finish ;
-reg Fifo_rd_retry ;
-reg [7:0] TxD ;
-reg TxEn ;
-reg CRC_init ;
-reg Data_en ;
-reg CRC_rd ;
-reg Fifo_rd ;
-reg MAC_tx_addr_rd ;
-reg MAC_header_slot ;
-reg MAC_header_slot_tmp ;
-reg [2:0] Tx_pkt_type_rmon ;
-wire Collision ;
-reg MAC_tx_addr_init ;
-reg Src_MAC_ptr ;
-reg [7:0] IPLengthCounter ;//for pad append
-reg [1:0] PADCounter ;
-reg [7:0] JamCounter ;
-reg PktDrpEvenPtr ;
-reg [7:0] pause_counter ;
-reg pause_quanta_sub ;
-reg [15:0] pause_quanta_set_dl1 ;
-reg xoff_gen_complete ;
-reg xon_gen_complete ;
-//******************************************************************************
-//boundery signal processing
-//******************************************************************************
-always @(posedge Clk or posedge Reset)
- if (Reset)
- begin
- pause_quanta_set_dl1 <=0;
- end
- else
- begin
- pause_quanta_set_dl1 <=pause_quanta_set ;
- end
-//******************************************************************************
-//state machine
-//******************************************************************************
-assign Collision=TxEn&CRS;
-
-always @(posedge Clk or posedge Reset)
- if (Reset)
- IPLengthCounter <=0;
- else if (Current_state==StateDefer)
- IPLengthCounter <=0;
- else if (IPLengthCounter!=8'hff&&(Current_state==StateData||Current_state==StateSendPauseFrame||Current_state==StatePAD))
- IPLengthCounter <=IPLengthCounter+1;
-
-always @(posedge Clk or posedge Reset)
- if (Reset)
- PADCounter <=0;
- else if (Current_state!=StatePAD)
- PADCounter <=0;
- else
- PADCounter <=PADCounter+1;
-
-always @(posedge Clk or posedge Reset)
- if (Reset)
- Current_state <=StateDefer;
- else
- Current_state <=Next_state;
-
-always @ (*)
- case (Current_state)
- StateDefer:
- if ((FullDuplex)||(!FullDuplex&&!CRS))
- Next_state=StateIFG;
- else
- Next_state=Current_state;
- StateIFG:
- if (!FullDuplex&&CRS)
- Next_state=StateDefer;
- else if ((FullDuplex&&IFG_counter==IFGset-4)||(!FullDuplex&&!CRS&&IFG_counter==IFGset-4))//remove some additional time
- Next_state=StateIdle;
- else
- Next_state=Current_state;
- StateIdle:
- if (!FullDuplex&&CRS)
- Next_state=StateDefer;
- else if (xoff_gen||xon_gen)
- Next_state=StatePreamble;
- else if (pause_apply)
- Next_state=StatePause;
- else if ((FullDuplex||~CRS)&&Fifo_ra)
- Next_state=StatePreamble;
- else
- Next_state=Current_state;
- StatePause:
- if (pause_counter==512/8)
- Next_state=StateDefer;
- else if (xoff_gen||xon_gen)
- Next_state=StateIdle;
- else
- Next_state=Current_state;
- StatePreamble:
- if (!FullDuplex&&Collision)
- Next_state=StateJam;
- else if ((FullDuplex&&Preamble_counter==6)||(!FullDuplex&&!Collision&&Preamble_counter==6))
- Next_state=StateSFD;
- else
- Next_state=Current_state;
- StateSFD:
- if (!FullDuplex&&Collision)
- Next_state=StateJam;
- else if (xoff_gen||xon_gen)
- Next_state=StateSendPauseFrame;
- else
- Next_state=StateData;
- StateSendPauseFrame:
- if (IPLengthCounter==17)
- Next_state=StatePAD;
- else
- Next_state=Current_state;
- StateData:
- if (!FullDuplex&&Collision)
- Next_state=StateJam;
- else if (Fifo_data_err_empty)
- Next_state=StateFFEmptyDrop;
- else if (Fifo_eop&&IPLengthCounter>=59)//IP+MAC+TYPE=60 ,start from 0
- Next_state=StateFCS;
- else if (Fifo_eop)
- Next_state=StatePAD;
- else
- Next_state=StateData;
- StatePAD:
- if (!FullDuplex&&Collision)
- Next_state=StateJam;
- else if (IPLengthCounter>=59)
- Next_state=StateFCS;
- else
- Next_state=Current_state;
- StateJam:
- if (RetryCnt<=MaxRetry&&JamCounter==16)
- Next_state=StateBackOff;
- else if (RetryCnt>MaxRetry)
- Next_state=StateJamDrop;
- else
- Next_state=Current_state;
- StateBackOff:
- if (Random_time_meet)
- Next_state =StateDefer;
- else
- Next_state =Current_state;
- StateFCS:
- if (!FullDuplex&&Collision)
- Next_state =StateJam;
- else if (CRC_end)
- Next_state =StateSwitchNext;
- else
- Next_state =Current_state;
- StateFFEmptyDrop:
- if (Fifo_eop)
- Next_state =StateSwitchNext;
- else
- Next_state =Current_state;
- StateJamDrop:
- if (Fifo_eop)
- Next_state =StateSwitchNext;
- else
- Next_state =Current_state;
- StateSwitchNext:
- Next_state =StateDefer;
- default:
- Next_state =StateDefer;
- endcase
-
-
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- JamCounter <=0;
- else if (Current_state!=StateJam)
- JamCounter <=0;
- else if (Current_state==StateJam)
- JamCounter <=JamCounter+1;
-
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- RetryCnt <=0;
- else if (Current_state==StateSwitchNext)
- RetryCnt <=0;
- else if (Current_state==StateJam&&Next_state==StateBackOff)
- RetryCnt <=RetryCnt + 1;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- IFG_counter <=0;
- else if (Current_state!=StateIFG)
- IFG_counter <=0;
- else
- IFG_counter <=IFG_counter + 1;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Preamble_counter <=0;
- else if (Current_state!=StatePreamble)
- Preamble_counter <=0;
- else
- Preamble_counter <=Preamble_counter+ 1;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- PktDrpEvenPtr <=0;
- else if(Current_state==StateJamDrop||Current_state==StateFFEmptyDrop)
- PktDrpEvenPtr <=~PktDrpEvenPtr;
-//******************************************************************************
-//generate output signals
-//******************************************************************************
-//CRC related
-always @(Current_state)
- if (Current_state==StateSFD)
- CRC_init =1;
- else
- CRC_init =0;
-
-assign Frame_data=TxD_tmp;
-
-always @(Current_state)
- if (Current_state==StateData||Current_state==StateSendPauseFrame||Current_state==StatePAD)
- Data_en =1;
- else
- Data_en =0;
-
-always @(Current_state)
- if (Current_state==StateFCS)
- CRC_rd =1;
- else
- CRC_rd =0;
-
-//Ramdon_gen interface
-always @(Current_state or Next_state)
- if (Current_state==StateJam&&Next_state==StateBackOff)
- Random_init =1;
- else
- Random_init =0;
-
-//MAC_rx_FF
-//data have one cycle delay after fifo read signals
-always @ (*)
- if (Current_state==StateData ||
- Current_state==StateSFD&&!(xoff_gen||xon_gen) ||
- Current_state==StateJamDrop&&PktDrpEvenPtr||
- Current_state==StateFFEmptyDrop&&PktDrpEvenPtr )
- Fifo_rd =1;
- else
- Fifo_rd =0;
-
-always @ (Current_state)
- if (Current_state==StateSwitchNext)
- Fifo_rd_finish =1;
- else
- Fifo_rd_finish =0;
-
-always @ (Current_state)
- if (Current_state==StateJam)
- Fifo_rd_retry =1;
- else
- Fifo_rd_retry =0;
-//RMII
-always @(Current_state)
- if (Current_state==StatePreamble||Current_state==StateSFD||
- Current_state==StateData||Current_state==StateSendPauseFrame||
- Current_state==StateFCS||Current_state==StatePAD||Current_state==StateJam)
- TxEn_tmp =1;
- else
- TxEn_tmp =0;
-
-//gen txd data
-always @(*)
- case (Current_state)
- StatePreamble:
- TxD_tmp =8'h55;
- StateSFD:
- TxD_tmp =8'hd5;
- StateData:
- if (Src_MAC_ptr&&MAC_tx_add_en)
- TxD_tmp =MAC_tx_addr_data;
- else
- TxD_tmp =Fifo_data;
- StateSendPauseFrame:
- if (Src_MAC_ptr&&MAC_tx_add_en)
- TxD_tmp =MAC_tx_addr_data;
- else
- case (IPLengthCounter)
- 8'd0: TxD_tmp =8'h01;
- 8'd1: TxD_tmp =8'h80;
- 8'd2: TxD_tmp =8'hc2;
- 8'd3: TxD_tmp =8'h00;
- 8'd4: TxD_tmp =8'h00;
- 8'd5: TxD_tmp =8'h01;
- 8'd12: TxD_tmp =8'h88;//type
- 8'd13: TxD_tmp =8'h08;//
- 8'd14: TxD_tmp =8'h00;//opcode
- 8'd15: TxD_tmp =8'h01;
- 8'd16: TxD_tmp =xon_gen?8'b0:pause_quanta_set_dl1[15:8];
- 8'd17: TxD_tmp =xon_gen?8'b0:pause_quanta_set_dl1[7:0];
-// 8'd60: TxD_tmp =8'h26;
-// 8'd61: TxD_tmp =8'h6b;
-// 8'd62: TxD_tmp =8'hae;
-// 8'd63: TxD_tmp =8'h0a;
- default:TxD_tmp =0;
- endcase
-
- StatePAD:
- TxD_tmp =8'h00;
- StateJam:
- TxD_tmp =8'h01; //jam sequence
- StateFCS:
- TxD_tmp =CRC_out;
- default:
- TxD_tmp =2'b0;
- endcase
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- begin
- TxD <=0;
- TxEn <=0;
- end
- else
- begin
- TxD <=TxD_tmp;
- TxEn <=TxEn_tmp;
- end
-//RMON
-
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Tx_pkt_length_rmon <=0;
- else if (Current_state==StateSFD)
- Tx_pkt_length_rmon <=0;
- else if (Current_state==StateData||Current_state==StateSendPauseFrame||Current_state==StatePAD||Current_state==StateFCS)
- Tx_pkt_length_rmon <=Tx_pkt_length_rmon+1;
-
-
-reg [2:0] Tx_apply_rmon_reg;
-
-always @( posedge Clk or posedge Reset )
- if ( Reset )
- begin
- Tx_apply_rmon <= 0;
- Tx_apply_rmon_reg <= 'b0;
- end
- else
- begin
- if ( (Fifo_eop&&Current_state==StateJamDrop) ||
- (Fifo_eop&&Current_state==StateFFEmptyDrop) ||
- CRC_end )
- Tx_apply_rmon <= 1;
- else
- if ( Tx_apply_rmon_reg[2] )
- Tx_apply_rmon <= 0;
-
- Tx_apply_rmon_reg <= { Tx_apply_rmon_reg[1:0], Tx_apply_rmon };
- end
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Tx_pkt_err_type_rmon <=0;
- else if(Fifo_eop&&Current_state==StateJamDrop)
- Tx_pkt_err_type_rmon <=3'b001;//
- else if(Fifo_eop&&Current_state==StateFFEmptyDrop)
- Tx_pkt_err_type_rmon <=3'b010;//underflow
- else if(Fifo_eop&&Fifo_data_err_full)
- Tx_pkt_err_type_rmon <=3'b011;//overflow
- else if(CRC_end)
- Tx_pkt_err_type_rmon <=3'b100;//normal
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- MAC_header_slot_tmp <=0;
- else if(Current_state==StateSFD&&Next_state==StateData)
- MAC_header_slot_tmp <=1;
- else
- MAC_header_slot_tmp <=0;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- MAC_header_slot <=0;
- else
- MAC_header_slot <=MAC_header_slot_tmp;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Tx_pkt_type_rmon <=0;
- else if (Current_state==StateSendPauseFrame)
- Tx_pkt_type_rmon <=3'b100;
- else if(MAC_header_slot)
- Tx_pkt_type_rmon <={1'b0,TxD[7:6]};
-
-
-always @(Tx_pkt_length_rmon)
- if (Tx_pkt_length_rmon>=6&&Tx_pkt_length_rmon<=11)
- Src_MAC_ptr =1;
- else
- Src_MAC_ptr =0;
-
-//MAC_tx_addr_add
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- MAC_tx_addr_rd <=0;
- else if ((Tx_pkt_length_rmon>=4&&Tx_pkt_length_rmon<=9)&&(MAC_tx_add_en||Current_state==StateSendPauseFrame))
- MAC_tx_addr_rd <=1;
- else
- MAC_tx_addr_rd <=0;
-
- always @*
- //if ((Tx_pkt_length_rmon==3)&&Fifo_rd)
- if (Current_state==StatePreamble)
- MAC_tx_addr_init=1;
- else
- MAC_tx_addr_init=0;
-
-//**************************************************************************************************************
-// CFH: this implementation delays the time it sends an entire Ethernet frame with 512 bits for every pause
-// request of 512 bits. Actually, it should only delay the time it takes to transmit 512 bits, not counting
-// Ethernet header, CRC, Interframe Gap etc.
-// Hence the current implementation waits longer than the pause frame actually requests (~20% more)
-//**************************************************************************************************************
-
-//flow control
-always @(posedge Clk or posedge Reset)
- if (Reset)
- pause_counter <=0;
- else if (Current_state!=StatePause)
- pause_counter <=0;
- else
- pause_counter <=pause_counter+1;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- pause_quanta_sub <=0;
- else if(pause_counter==512/8)
- pause_quanta_sub <=1;
- else
- pause_quanta_sub <=0;
-
-// FIXME The below probably won't work if the pause request comes when we are in the wrong state
- reg clear_xonxoff;
- always @(posedge Clk or posedge Reset)
- if(Reset)
- clear_xonxoff <= 0;
- else if((Current_state==StateSendPauseFrame) & (IPLengthCounter==17))
- clear_xonxoff <= 1;
- else if(~xon_gen & ~xoff_gen)
- clear_xonxoff <= 0;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- xoff_gen_complete <=0;
- else if(clear_xonxoff & xoff_gen)
- xoff_gen_complete <=1;
- else
- xoff_gen_complete <=0;
-
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- xon_gen_complete <=0;
- else if(clear_xonxoff & xon_gen)
- xon_gen_complete <=1;
- else
- xon_gen_complete <=0;
-
-endmodule
diff --git a/eth/rtl/verilog/MAC_tx/Random_gen.v b/eth/rtl/verilog/MAC_tx/Random_gen.v deleted file mode 100644 index fd57008b1..000000000 --- a/eth/rtl/verilog/MAC_tx/Random_gen.v +++ /dev/null @@ -1,109 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// Random_gen.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-
-module Random_gen(
-Reset ,
-Clk ,
-Init ,
-RetryCnt ,
-Random_time_meet
-);
-input Reset ;
-input Clk ;
-input Init ;
-input [3:0] RetryCnt ;
-output Random_time_meet;
-
-//******************************************************************************
-//internal signals
-//******************************************************************************
-reg [9:0] Random_sequence ;
-reg [9:0] Random ;
-reg [9:0] Random_counter ;
-reg [7:0] Slot_time_counter; //256*2=512bit=1 slot time
-reg Random_time_meet;
-
-//******************************************************************************
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Random_sequence <=0;
- else
- Random_sequence <={Random_sequence[8:0],~(Random_sequence[2]^Random_sequence[9])};
-
-always @ (RetryCnt or Random_sequence)
- case (RetryCnt)
- 4'h0 : Random={9'b0,Random_sequence[0]};
- 4'h1 : Random={8'b0,Random_sequence[1:0]};
- 4'h2 : Random={7'b0,Random_sequence[2:0]};
- 4'h3 : Random={6'b0,Random_sequence[3:0]};
- 4'h4 : Random={5'b0,Random_sequence[4:0]};
- 4'h5 : Random={4'b0,Random_sequence[5:0]};
- 4'h6 : Random={3'b0,Random_sequence[6:0]};
- 4'h7 : Random={2'b0,Random_sequence[7:0]};
- 4'h8 : Random={1'b0,Random_sequence[8:0]};
- 4'h9 : Random={ Random_sequence[9:0]};
- default : Random={ Random_sequence[9:0]};
- endcase
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Slot_time_counter <=0;
- else if(Init)
- Slot_time_counter <=0;
- else if(!Random_time_meet)
- Slot_time_counter <=Slot_time_counter+1;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Random_counter <=0;
- else if (Init)
- Random_counter <=Random;
- else if (Random_counter!=0&&Slot_time_counter==255)
- Random_counter <=Random_counter -1 ;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Random_time_meet <=1;
- else if (Init)
- Random_time_meet <=0;
- else if (Random_counter==0)
- Random_time_meet <=1;
-
-endmodule
-
-
diff --git a/eth/rtl/verilog/Phy_int.v b/eth/rtl/verilog/Phy_int.v deleted file mode 100644 index c85d4f64b..000000000 --- a/eth/rtl/verilog/Phy_int.v +++ /dev/null @@ -1,205 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// Phy_int.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: Phy_int.v,v $
-// Revision 1.3 2006/01/19 14:07:53 maverickist
-// verification is complete.
-//
-// Revision 1.3 2005/12/16 06:44:14 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.2 2005/12/13 12:15:36 Administrator
-// no message
-//
-// Revision 1.1.1.1 2005/12/13 01:51:44 Administrator
-// no message
-//
-
-module Phy_int
- (input rst_mac_rx,
- input rst_mac_tx,
- input MAC_rx_clk,
- input MAC_tx_clk,
-
- // Rx interface
- output reg MCrs_dv,
- output reg [7:0] MRxD,
- output MRxErr,
-
- // Tx interface
- input [7:0] MTxD,
- input MTxEn,
- output MCRS,
-
- // PHY interface
- output Tx_er,
- output reg Tx_en,
- output reg [7:0] Txd,
- input Rx_er,
- input Rx_dv,
- input [7:0] Rxd,
- input Crs,
- input Col,
-
- // Host interface
- input Line_loop_en,
- input [2:0] Speed );
-
- //-------------------------------------------------------------------------
- // Local declarations
- //-------------------------------------------------------------------------
-
- reg [7:0] MTxD_dl1;
- reg MTxEn_dl1;
- reg Tx_odd_data_ptr;
- reg Rx_odd_data_ptr;
- reg Rx_er_dl1;
- reg Rx_dv_dl1;
- reg Rx_dv_dl2;
- reg [7:0] Rxd_dl1;
- reg [7:0] Rxd_dl2;
- reg Crs_dl1;
-
- //-------------------------------------------------------------------------
- // Tx control
- //-------------------------------------------------------------------------
-
- // Reg boundary signals
- always @( posedge MAC_tx_clk or posedge rst_mac_tx )
- if ( rst_mac_tx )
- begin
- MTxD_dl1 <= 0;
- MTxEn_dl1 <= 0;
- end
- else
- begin
- MTxD_dl1 <= MTxD;
- MTxEn_dl1 <= MTxEn;
- end
-
- always @( posedge MAC_tx_clk or posedge rst_mac_tx )
- if ( rst_mac_tx )
- Tx_odd_data_ptr <= 0;
- else if ( !MTxD_dl1 )
- Tx_odd_data_ptr <= 0;
- else
- Tx_odd_data_ptr <= !Tx_odd_data_ptr;
-
-
- always @( posedge MAC_tx_clk or posedge rst_mac_tx )
- if ( rst_mac_tx )
- Txd <= 0;
- else if ( Speed[2] && MTxEn_dl1 )
- Txd <= MTxD_dl1;
- else if ( MTxEn_dl1 && !Tx_odd_data_ptr )
- Txd <= { 4'b0, MTxD_dl1[3:0] };
- else if ( MTxEn_dl1 && Tx_odd_data_ptr )
- Txd <= { 4'b0, MTxD_dl1[7:4] };
- else
- Txd <=0;
-
- always @( posedge MAC_tx_clk or posedge rst_mac_tx )
- if ( rst_mac_tx )
- Tx_en <= 0;
- else if ( MTxEn_dl1 )
- Tx_en <= 1;
- else
- Tx_en <= 0;
-
- assign Tx_er = 0;
-
- //-------------------------------------------------------------------------
- // Rx control
- //-------------------------------------------------------------------------
-
- // Reg boundery signals
- always @( posedge MAC_rx_clk or posedge rst_mac_rx )
- if ( rst_mac_rx )
- begin
- Rx_er_dl1 <= 0;
- Rx_dv_dl1 <= 0;
- Rx_dv_dl2 <= 0;
- Rxd_dl1 <= 0;
- Rxd_dl2 <= 0;
- Crs_dl1 <= 0;
- end
- else
- begin
- Rx_er_dl1 <= Rx_er;
- Rx_dv_dl1 <= Rx_dv;
- Rx_dv_dl2 <= Rx_dv_dl1;
- Rxd_dl1 <= Rxd;
- Rxd_dl2 <= Rxd_dl1;
- Crs_dl1 <= Crs;
- end
-
- assign MRxErr = Rx_er_dl1;
- assign MCRS = Crs_dl1;
-
- always @( posedge MAC_rx_clk or posedge rst_mac_rx )
- if ( rst_mac_rx )
- MCrs_dv <= 0;
- else if ( Line_loop_en )
- MCrs_dv <= Tx_en;
- else if( Rx_dv_dl2 )
- MCrs_dv <= 1;
- else
- MCrs_dv <= 0;
-
- always @ ( posedge MAC_rx_clk or posedge rst_mac_rx )
- if ( rst_mac_rx )
- Rx_odd_data_ptr <= 0;
- else if ( !Rx_dv_dl1 )
- Rx_odd_data_ptr <= 0;
- else
- Rx_odd_data_ptr <= !Rx_odd_data_ptr;
-
- always @ ( posedge MAC_rx_clk or posedge rst_mac_rx )
- if ( rst_mac_rx )
- MRxD <= 0;
- else if( Line_loop_en )
- MRxD <= Txd;
- else if( Speed[2] && Rx_dv_dl2 )
- MRxD <= Rxd_dl2;
- else if( Rx_dv_dl1 && Rx_odd_data_ptr )
- MRxD <={ Rxd_dl1[3:0], Rxd_dl2[3:0] };
-
-endmodule
diff --git a/eth/rtl/verilog/RMON.v b/eth/rtl/verilog/RMON.v deleted file mode 100644 index 18a84beb5..000000000 --- a/eth/rtl/verilog/RMON.v +++ /dev/null @@ -1,163 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// RMON.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: RMON.v,v $
-// Revision 1.4 2006/06/25 04:58:56 maverickist
-// no message
-//
-// Revision 1.3 2006/01/19 14:07:53 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:16 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:44 Administrator
-// no message
-//
-
-module RMON
- (input Clk ,
- input Reset ,
- //Tx_RMON
- input [2:0] Tx_pkt_type_rmon ,
- input [15:0] Tx_pkt_length_rmon ,
- input Tx_apply_rmon ,
- input [2:0] Tx_pkt_err_type_rmon,
- //Tx_RMON
- input [2:0] Rx_pkt_type_rmon ,
- input [15:0] Rx_pkt_length_rmon ,
- input Rx_apply_rmon ,
- input [2:0] Rx_pkt_err_type_rmon,
- //CPU
- input [5:0] CPU_rd_addr ,
- input CPU_rd_apply ,
- output CPU_rd_grant ,
- output [31:0] CPU_rd_dout
- );
-
- // ******************************************************************************
- // interface signals
- // ******************************************************************************
- wire Reg_apply_0 ;
- wire [4:0] Reg_addr_0 ;
- wire [15:0] Reg_data_0 ;
- wire Reg_next_0 ;
- wire Reg_apply_1 ;
- wire [4:0] Reg_addr_1 ;
- wire [15:0] Reg_data_1 ;
- wire Reg_next_1 ;
- wire [5:0] Addra ;
- wire [31:0] Dina ;
- reg [31:0] Douta ;
- wire Wea ;
-
- // ******************************************************************************
-
- RMON_addr_gen U_0_Rx_RMON_addr_gen
- (.Clk (Clk ),
- .Reset (Reset ),
- //RMON
- .Pkt_type_rmon (Rx_pkt_type_rmon ),
- .Pkt_length_rmon (Rx_pkt_length_rmon ),
- .Apply_rmon (Rx_apply_rmon ),
- .Pkt_err_type_rmon (Rx_pkt_err_type_rmon ),
- //Rmon_ctrl
- .Reg_apply (Reg_apply_0 ),
- .Reg_addr (Reg_addr_0 ),
- .Reg_data (Reg_data_0 ),
- .Reg_next (Reg_next_0 ),
- //CPU
- .Reg_drop_apply ( ) );
-
- RMON_addr_gen U_0_Tx_RMON_addr_gen
- (.Clk (Clk ),
- .Reset (Reset ),
- //RMON
- .Pkt_type_rmon (Tx_pkt_type_rmon ),
- .Pkt_length_rmon (Tx_pkt_length_rmon ),
- .Apply_rmon (Tx_apply_rmon ),
- .Pkt_err_type_rmon (Tx_pkt_err_type_rmon ),
- //Rmon_ctrl
- .Reg_apply (Reg_apply_1 ),
- .Reg_addr (Reg_addr_1 ),
- .Reg_data (Reg_data_1 ),
- .Reg_next (Reg_next_1 ),
- //CPU
- .Reg_drop_apply ( ) );
-
- RMON_ctrl U_RMON_ctrl
- (.Clk (Clk ),
- .Reset (Reset ),
- //RMON_ctrl
- .Reg_apply_0 (Reg_apply_0 ),
- .Reg_addr_0 (Reg_addr_0 ),
- .Reg_data_0 (Reg_data_0 ),
- .Reg_next_0 (Reg_next_0 ),
- .Reg_apply_1 (Reg_apply_1 ),
- .Reg_addr_1 (Reg_addr_1 ),
- .Reg_data_1 (Reg_data_1 ),
- .Reg_next_1 (Reg_next_1 ),
- //dual-port ram
- .Addra (Addra ),
- .Dina (Dina ),
- .Douta (Douta ),
- .Wea (Wea ),
- //CPU
- .CPU_rd_addr (CPU_rd_addr ),
- .CPU_rd_apply (CPU_rd_apply ),
- .CPU_rd_grant (CPU_rd_grant ),
- .CPU_rd_dout (CPU_rd_dout ) );
-
- reg [31:0] RMON_ram [0:63];
- wire [31:0] Douta_imm = RMON_ram[Addra];
- integer i;
- initial
- for(i=0;i<64;i=i+1)
- RMON_ram[i] = 32'd0;
-
- always @(posedge Clk)
- if(Wea)
- RMON_ram[Addra] <= Dina;
-
- always @(posedge Clk)
- Douta <= Douta_imm;
-
-endmodule // RMON
diff --git a/eth/rtl/verilog/RMON/RMON_addr_gen.v b/eth/rtl/verilog/RMON/RMON_addr_gen.v deleted file mode 100644 index 9da8d1f80..000000000 --- a/eth/rtl/verilog/RMON/RMON_addr_gen.v +++ /dev/null @@ -1,295 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// RMON_addr_gen.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: RMON_addr_gen.v,v $
-// Revision 1.4 2006/06/25 04:58:57 maverickist
-// no message
-//
-// Revision 1.3 2006/01/19 14:07:55 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:19 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator
-// no message
-//
-module RMON_addr_gen(
-Clk ,
-Reset ,
-//RMON
-Pkt_type_rmon ,
-Pkt_length_rmon ,
-Apply_rmon ,//pluse signal looks like eop
-Pkt_err_type_rmon ,
-//
-Reg_apply ,
-Reg_addr ,
-Reg_data ,
-Reg_next ,
-//CPU
-Reg_drop_apply
-);
-input Clk ;
-input Reset ;
- //RMON
-input [2:0] Pkt_type_rmon ;
-input [15:0] Pkt_length_rmon ;
-input Apply_rmon ;//pluse signal looks like eop
-input [2:0] Pkt_err_type_rmon ;
- //RMON_ctrl
-output Reg_apply ;
-output [4:0] Reg_addr ;
-output [15:0] Reg_data ;
-input Reg_next ;
- //CPU
-output Reg_drop_apply ;
-
-//******************************************************************************
-//internal signals
-//******************************************************************************
-parameter StateIdle =4'd0;
-parameter StatePktLength =4'd1;
-parameter StatePktNumber =4'd2;
-parameter StatePktType =4'd3;
-parameter StatePktRange =4'd4;
-
-reg [3:0] CurrentState /* synthesys syn_keep=1 */;
-reg [3:0] NextState;
-
-reg [2:0] PktTypeReg ;
-reg [15:0] PktLengthReg ;
-reg [2:0] PktErrTypeReg ;
-
-reg Reg_apply ;
-reg [4:0] Reg_addr ;
-reg [15:0] Reg_data ;
-reg Reg_drop_apply ;
-//******************************************************************************
-//register boundery signals
-
-//******************************************************************************
-reg Apply_rmon_dl1;
-reg Apply_rmon_dl2;
-reg Apply_rmon_pulse;
-reg [2:0] Pkt_type_rmon_dl1 ;
-reg [15:0] Pkt_length_rmon_dl1 ;
-reg [2:0] Pkt_err_type_rmon_dl1 ;
-
-always @(posedge Clk or posedge Reset)
- if (Reset)
- begin
- Pkt_type_rmon_dl1 <=0;
- Pkt_length_rmon_dl1 <=0;
- Pkt_err_type_rmon_dl1 <=0;
- end
- else
- begin
- Pkt_type_rmon_dl1 <=Pkt_type_rmon ;
- Pkt_length_rmon_dl1 <=Pkt_length_rmon ;
- Pkt_err_type_rmon_dl1 <=Pkt_err_type_rmon ;
- end
-
-always @(posedge Clk or posedge Reset)
- if (Reset)
- begin
- Apply_rmon_dl1 <=0;
- Apply_rmon_dl2 <=0;
- end
- else
- begin
- Apply_rmon_dl1 <=Apply_rmon;
- Apply_rmon_dl2 <=Apply_rmon_dl1;
- end
-
-always @(Apply_rmon_dl1 or Apply_rmon_dl2)
- if (Apply_rmon_dl1&!Apply_rmon_dl2)
- Apply_rmon_pulse =1;
- else
- Apply_rmon_pulse =0;
-
-
-
-always @(posedge Clk or posedge Reset)
- if (Reset)
- begin
- PktTypeReg <=0;
- PktLengthReg <=0;
- PktErrTypeReg <=0;
- end
- else if (Apply_rmon_pulse&&CurrentState==StateIdle)
- begin
- PktTypeReg <=Pkt_type_rmon_dl1 ;
- PktLengthReg <=Pkt_length_rmon_dl1 ;
- PktErrTypeReg <=Pkt_err_type_rmon_dl1 ;
- end
-
-
-//******************************************************************************
-//State Machine
-//******************************************************************************
-always @(posedge Clk or posedge Reset)
- if (Reset)
- CurrentState <=StateIdle;
- else
- CurrentState <=NextState;
-
-always @(CurrentState or Apply_rmon_pulse or Reg_next)
- case (CurrentState)
- StateIdle:
- if (Apply_rmon_pulse)
- NextState =StatePktLength;
- else
- NextState =StateIdle;
- StatePktLength:
- if (Reg_next)
- NextState =StatePktNumber;
- else
- NextState =CurrentState;
- StatePktNumber:
- if (Reg_next)
- NextState =StatePktType;
- else
- NextState =CurrentState;
- StatePktType:
- if (Reg_next)
- NextState =StatePktRange;
- else
- NextState =CurrentState;
- StatePktRange:
- if (Reg_next)
- NextState =StateIdle;
- else
- NextState =CurrentState;
- default:
- NextState =StateIdle;
- endcase
-
-//******************************************************************************
-//gen output signals
-//******************************************************************************
-//Reg_apply
-always @ (CurrentState)
- if (CurrentState==StatePktLength||CurrentState==StatePktNumber||
- CurrentState==StatePktType||CurrentState==StatePktRange)
- Reg_apply =1;
- else
- Reg_apply =0;
-
-//Reg_addr
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Reg_addr <=0;
- else case (CurrentState)
- StatePktLength:
- Reg_addr <=5'd00;
- StatePktNumber:
- Reg_addr <=5'd01;
- StatePktType:
- case(PktTypeReg)
- 3'b011:
- Reg_addr <=5'd02; //broadcast
- 3'b001:
- Reg_addr <=5'd03; //multicast
- 3'b100:
- Reg_addr <=5'd16; //pause frame
- default:
- Reg_addr <=5'd04; //unicast
- endcase
- StatePktRange:
- case(PktErrTypeReg)
- 3'b001:
- Reg_addr <=5'd05;
- 3'b010:
- Reg_addr <=5'd06;
- 3'b011:
- Reg_addr <=5'd07;
- 3'b100:
- if (PktLengthReg<64)
- Reg_addr <=5'd08;
- else if (PktLengthReg==64)
- Reg_addr <=5'd09;
- else if (PktLengthReg<128)
- Reg_addr <=5'd10;
- else if (PktLengthReg<256)
- Reg_addr <=5'd11;
- else if (PktLengthReg<512)
- Reg_addr <=5'd12;
- else if (PktLengthReg<1024)
- Reg_addr <=5'd13;
- else if (PktLengthReg<1519)
- Reg_addr <=5'd14;
- else
- Reg_addr <=5'd15;
- default:
- Reg_addr <=5'd05;
- endcase
- default:
- Reg_addr <=5'd05;
- endcase
-
-//Reg_data
-always @ (CurrentState or PktLengthReg)
- case (CurrentState)
- StatePktLength:
- Reg_data =PktLengthReg;
- StatePktNumber:
- Reg_data =1;
- StatePktType:
- Reg_data =1;
- StatePktRange:
- Reg_data =1;
- default:
- Reg_data =0;
- endcase
-
-//Reg_drop_apply
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Reg_drop_apply <=0;
- else if (CurrentState!=StateIdle&&Apply_rmon_pulse)
- Reg_drop_apply <=1;
- else
- Reg_drop_apply <=0;
-
-
-endmodule
-
diff --git a/eth/rtl/verilog/RMON/RMON_ctrl.v b/eth/rtl/verilog/RMON/RMON_ctrl.v deleted file mode 100644 index 4fc038dc8..000000000 --- a/eth/rtl/verilog/RMON/RMON_ctrl.v +++ /dev/null @@ -1,283 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// RMON_ctrl.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: RMON_ctrl.v,v $
-// Revision 1.4 2006/06/25 04:58:57 maverickist
-// no message
-//
-// Revision 1.3 2006/01/19 14:07:55 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:19 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator
-// no message
-//
-module RMON_ctrl (
-Clk ,
-Reset ,
-//RMON_ctrl
-Reg_apply_0 ,
-Reg_addr_0 ,
-Reg_data_0 ,
-Reg_next_0 ,
-Reg_apply_1 ,
-Reg_addr_1 ,
-Reg_data_1 ,
-Reg_next_1 ,
-//dual-port ram
-Addra ,
-Dina ,
-Douta ,
-Wea ,
-//CPU
-CPU_rd_addr ,
-CPU_rd_apply ,
-CPU_rd_grant ,
-CPU_rd_dout
-
-);
-input Clk ;
-input Reset ;
- //RMON_ctrl
-input Reg_apply_0 ;
-input [4:0] Reg_addr_0 ;
-input [15:0] Reg_data_0 ;
-output Reg_next_0 ;
-input Reg_apply_1 ;
-input [4:0] Reg_addr_1 ;
-input [15:0] Reg_data_1 ;
-output Reg_next_1 ;
- //dual-port ram
- //port-a for Rmon
-output [5:0] Addra ;
-output [31:0] Dina ;
-input [31:0] Douta ;
-output Wea ;
- //CPU
-input [5:0] CPU_rd_addr ;
-input CPU_rd_apply ;
-output CPU_rd_grant ;
-output [31:0] CPU_rd_dout ;
-
-
-
-
-//******************************************************************************
-//internal signals
-//******************************************************************************
-
-parameter StateCPU =4'd00;
-parameter StateMAC0 =4'd01;
-parameter StateMAC1 =4'd02;
-
-
-reg [3:0] CurrentState /* synthesys syn_keep=1 */;
-reg [3:0] NextState;
-reg [3:0] CurrentState_reg;
-
-reg [4:0] StepCounter;
-reg [5:0] Addra ;
-reg [31:0] Dina;
-reg Reg_next_0 ;
-reg Reg_next_1 ;
-reg Write;
-reg Read;
-reg Pipeline;
-reg [31:0] CPU_rd_dout ;
-reg CPU_rd_apply_reg ;
-//******************************************************************************
-//State Machine
-//******************************************************************************
-
-always @(posedge Clk or posedge Reset)
- if (Reset)
- CurrentState <=StateMAC0;
- else
- CurrentState <=NextState;
-
-always @(posedge Clk or posedge Reset)
- if (Reset)
- CurrentState_reg <=StateMAC0;
- else if(CurrentState!=StateCPU)
- CurrentState_reg <=CurrentState;
-
-always @(CurrentState or CPU_rd_apply_reg or Reg_apply_0 or CurrentState_reg
- or Reg_apply_1
- or StepCounter
- )
- case(CurrentState)
- StateMAC0:
- if(!Reg_apply_0&&CPU_rd_apply_reg)
- NextState =StateCPU;
- else if(!Reg_apply_0)
- NextState =StateMAC1;
- else
- NextState =CurrentState;
- StateMAC1:
- if(!Reg_apply_1&&CPU_rd_apply_reg)
- NextState =StateCPU;
- else if(!Reg_apply_1)
- NextState =StateMAC0;
- else
- NextState =CurrentState;
- StateCPU:
- if (StepCounter==3)
- case (CurrentState_reg)
- StateMAC0 :NextState =StateMAC0 ;
- StateMAC1 :NextState =StateMAC1 ;
- default :NextState =StateMAC0;
- endcase
- else
- NextState =CurrentState;
-
- default:
- NextState =StateMAC0;
- endcase
-
-
-
-always @(posedge Clk or posedge Reset)
- if (Reset)
- StepCounter <=0;
- else if(NextState!=CurrentState)
- StepCounter <=0;
- else if (StepCounter!=4'hf)
- StepCounter <=StepCounter + 1;
-
-//******************************************************************************
-//temp signals
-//******************************************************************************
-always @(StepCounter)
- if( StepCounter==1||StepCounter==4||
- StepCounter==7||StepCounter==10)
- Read =1;
- else
- Read =0;
-
-always @(StepCounter or CurrentState)
- if( StepCounter==2||StepCounter==5||
- StepCounter==8||StepCounter==11)
- Pipeline =1;
- else
- Pipeline =0;
-
-always @(StepCounter or CurrentState)
- if( StepCounter==3||StepCounter==6||
- StepCounter==9||StepCounter==12)
- Write =1;
- else
- Write =0;
-
-
-//******************************************************************************
-//gen output signals
-//******************************************************************************
-//Addra
-always @(*)
- case(CurrentState)
- StateMAC0 : Addra={1'd0 ,Reg_addr_0 };
- StateMAC1 : Addra={1'd1 ,Reg_addr_1 };
- StateCPU: Addra=CPU_rd_addr;
- default: Addra=0;
- endcase
-
-//Dina
-always @(posedge Clk or posedge Reset)
- if (Reset)
- Dina <=0;
- else
- case(CurrentState)
- StateMAC0 : Dina<=Douta+Reg_data_0 ;
- StateMAC1 : Dina<=Douta+Reg_data_1 ;
- StateCPU: Dina<=0;
- default: Dina<=0;
- endcase
-
-assign Wea =Write;
-//Reg_next
-always @(CurrentState or Pipeline)
- if(CurrentState==StateMAC0)
- Reg_next_0 =Pipeline;
- else
- Reg_next_0 =0;
-
-always @(CurrentState or Pipeline)
- if(CurrentState==StateMAC1)
- Reg_next_1 =Pipeline;
- else
- Reg_next_1 =0;
-
-
-//CPU_rd_grant
-reg CPU_rd_apply_dl1;
-reg CPU_rd_apply_dl2;
-//rising edge
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- begin
- CPU_rd_apply_dl1 <=0;
- CPU_rd_apply_dl2 <=0;
- end
- else
- begin
- CPU_rd_apply_dl1 <=CPU_rd_apply;
- CPU_rd_apply_dl2 <=CPU_rd_apply_dl1;
- end
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- CPU_rd_apply_reg <=0;
- else if (CPU_rd_apply_dl1&!CPU_rd_apply_dl2)
- CPU_rd_apply_reg <=1;
- else if (CurrentState==StateCPU&&Write)
- CPU_rd_apply_reg <=0;
-
-assign CPU_rd_grant = CPU_rd_apply & CPU_rd_apply_dl1 & CPU_rd_apply_dl2 & !CPU_rd_apply_reg;
-
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- CPU_rd_dout <=0;
- else if (Pipeline&&CurrentState==StateCPU)
- CPU_rd_dout <=Douta;
-
-endmodule
diff --git a/eth/rtl/verilog/Reg_int.v b/eth/rtl/verilog/Reg_int.v deleted file mode 100644 index bdf73d8e5..000000000 --- a/eth/rtl/verilog/Reg_int.v +++ /dev/null @@ -1,275 +0,0 @@ -module Reg_int (
- // Wishbone compliant core host interface
- input CLK_I, // Wishbone interface clock (nominally 50 MHz)
- input RST_I, // Active high (async) reset of the Wishbone interface
- input STB_I, // Active high module-select
- input CYC_I, // Active high cycle-enable
- input [6:0] ADR_I, // Module register address
- input WE_I, // Active high for writes, low for reads
- input [31:0] DAT_I, // Write data
- output reg [31:0] DAT_O, // Read data
- output reg ACK_O, // Acknowledge output – single high pulse
-
- // Tx host interface
- output [4:0] Tx_Hwmark,
- output [4:0] Tx_Lwmark,
- output MAC_tx_add_en,
- output FullDuplex,
- output [3:0] MaxRetry,
- output [5:0] IFGset,
- output [7:0] MAC_tx_add_prom_data,
- output [2:0] MAC_tx_add_prom_add,
- output MAC_tx_add_prom_wr,
-
- // Rx host interface
- output MAC_rx_add_chk_en,
- output [7:0] MAC_rx_add_prom_data,
- output [2:0] MAC_rx_add_prom_add,
- output MAC_rx_add_prom_wr,
- output broadcast_filter_en,
- output [15:0] broadcast_bucket_depth,
- output [15:0] broadcast_bucket_interval,
- output RX_APPEND_CRC,
- output [4:0] Rx_Hwmark,
- output [4:0] Rx_Lwmark,
- output CRC_chk_en,
- output [5:0] RX_IFG_SET,
- output [15:0] RX_MAX_LENGTH, // Default 1518
- output [6:0] RX_MIN_LENGTH, // Default 64
-
- // Flow control settings
- output pause_frame_send_en,
- output [15:0] pause_quanta_set,
- output tx_pause_en,
- output [15:0] fc_hwmark,
- output [15:0] fc_lwmark,
- output [15:0] fc_padtime,
-
- // RMON host interface
- output [5:0] CPU_rd_addr,
- output CPU_rd_apply,
- input CPU_rd_grant,
- input [31:0] CPU_rd_dout,
-
- //Phy int host interface
- output Line_loop_en,
- output [2:0] Speed,
-
- //MII to CPU
- output [7:0] Divider, // Divider for the host clock
- output [15:0] CtrlData, // Control Data (to be written to the PHY reg.)
- output [4:0] Rgad, // Register Address (within the PHY)
- output [4:0] Fiad, // PHY Address
- output NoPre, // No Preamble (no 32-bit preamble)
- output WCtrlData, // Write Control Data operation
- output RStat, // Read Status operation
- output ScanStat, // Scan Status operation
- input Busy, // Busy Signal
- input LinkFail, // Link Integrity Signal
- input Nvalid, // Invalid Status (qualifier for the valid scan result)
- input [15:0] Prsd, // Read Status Data (data read from the PHY)
- input WCtrlDataStart, // This signals resets the WCTRLDATA bit in the MIIM Command register
- input RStatStart, // This signal resets the RSTAT BIT in the MIIM Command register
- input UpdateMIIRX_DATAReg // Updates MII RX_DATA register with read data
-);
-
- // New registers for controlling the MII interface
- wire [8:0] MIIMODER;
- reg [2:0] MIICOMMAND;
- wire [12:0] MIIADDRESS;
- wire [15:0] MIITX_DATA;
- reg [15:0] MIIRX_DATA;
- wire [2:0] MIISTATUS;
-
- // New registers for controlling the MII interface
-
- // MIIMODER
- assign NoPre = MIIMODER[8];
- assign Divider = MIIMODER[7:0];
- // MIICOMMAND
- assign WCtrlData = MIICOMMAND[2];
- assign RStat = MIICOMMAND[1];
- assign ScanStat = MIICOMMAND[0];
- // MIIADDRESS
- assign Rgad = MIIADDRESS[12:8];
- assign Fiad = MIIADDRESS[4:0];
- // MIITX_DATA
- assign CtrlData = MIITX_DATA[15:0];
- // MIISTATUS
- assign MIISTATUS[2:0] = { 13'b0, Nvalid, Busy, LinkFail };
-
- wire Wr;
-
- RegCPUData #( 5 ) U_0_000( Tx_Hwmark , 7'd000, 5'h09, RST_I, CLK_I, Wr, ADR_I, DAT_I[4:0] );
- RegCPUData #( 5 ) U_0_001( Tx_Lwmark , 7'd001, 5'h08, RST_I, CLK_I, Wr, ADR_I, DAT_I[4:0] );
- RegCPUData #( 1 ) U_0_002( pause_frame_send_en , 7'd002, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
- RegCPUData #( 16 ) U_0_003( pause_quanta_set , 7'd003, 16'h01af, RST_I, CLK_I, Wr, ADR_I, DAT_I[15:0] );
- RegCPUData #( 6 ) U_0_004( IFGset , 7'd004, 6'h0c, RST_I, CLK_I, Wr, ADR_I, DAT_I[5:0] );
- RegCPUData #( 1 ) U_0_005( FullDuplex , 7'd005, 1'h1, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
- RegCPUData #( 4 ) U_0_006( MaxRetry , 7'd006, 4'h2, RST_I, CLK_I, Wr, ADR_I, DAT_I[3:0] );
- RegCPUData #( 1 ) U_0_007( MAC_tx_add_en , 7'd007, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
- RegCPUData #( 8 ) U_0_008( MAC_tx_add_prom_data , 7'd008, 8'h00, RST_I, CLK_I, Wr, ADR_I, DAT_I[7:0] );
- RegCPUData #( 3 ) U_0_009( MAC_tx_add_prom_add , 7'd009, 3'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[2:0] );
- RegCPUData #( 1 ) U_0_010( MAC_tx_add_prom_wr , 7'd010, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
- RegCPUData #( 1 ) U_0_011( tx_pause_en , 7'd011, 1'h1, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
- RegCPUData #( 16 ) U_0_012( fc_hwmark , 7'd012, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[15:0] );
- RegCPUData #( 16 ) U_0_013( fc_lwmark , 7'd013, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[15:0] );
- RegCPUData #( 1 ) U_0_014( MAC_rx_add_chk_en , 7'd014, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
- RegCPUData #( 8 ) U_0_015( MAC_rx_add_prom_data , 7'd015, 8'h00, RST_I, CLK_I, Wr, ADR_I, DAT_I[7:0] );
- RegCPUData #( 3 ) U_0_016( MAC_rx_add_prom_add , 7'd016, 3'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[2:0] );
- RegCPUData #( 1 ) U_0_017( MAC_rx_add_prom_wr , 7'd017, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
- RegCPUData #( 1 ) U_0_018( broadcast_filter_en , 7'd018, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
- RegCPUData #( 16 ) U_0_019( broadcast_bucket_depth , 7'd019, 16'h0000, RST_I, CLK_I, Wr, ADR_I, DAT_I[15:0] );
- RegCPUData #( 16 ) U_0_020( broadcast_bucket_interval , 7'd020, 16'h0000, RST_I, CLK_I, Wr, ADR_I, DAT_I[15:0] );
- RegCPUData #( 1 ) U_0_021( RX_APPEND_CRC , 7'd021, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
- RegCPUData #( 5 ) U_0_022( Rx_Hwmark , 7'd022, 5'h1a, RST_I, CLK_I, Wr, ADR_I, DAT_I[4:0] );
- RegCPUData #( 5 ) U_0_023( Rx_Lwmark , 7'd023, 5'h10, RST_I, CLK_I, Wr, ADR_I, DAT_I[4:0] );
- RegCPUData #( 1 ) U_0_024( CRC_chk_en , 7'd024, 1'h1, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
- RegCPUData #( 6 ) U_0_025( RX_IFG_SET , 7'd025, 6'h0c, RST_I, CLK_I, Wr, ADR_I, DAT_I[5:0] );
- RegCPUData #( 16 ) U_0_026( RX_MAX_LENGTH , 7'd026, 16'h2710, RST_I, CLK_I, Wr, ADR_I, DAT_I[15:0] );
- RegCPUData #( 7 ) U_0_027( RX_MIN_LENGTH , 7'd027, 7'h40, RST_I, CLK_I, Wr, ADR_I, DAT_I[6:0] );
- RegCPUData #( 6 ) U_0_028( CPU_rd_addr , 7'd028, 6'h00, RST_I, CLK_I, Wr, ADR_I, DAT_I[5:0] );
- RegCPUData #( 1 ) U_0_029( CPU_rd_apply , 7'd029, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
-//RegCPUData #( 1 ) U_0_030( CPU_rd_grant , 7'd030, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
-//RegCPUData #( 16 ) U_0_031( CPU_rd_dout_l , 7'd031, 16'h0000, RST_I, CLK_I, Wr, ADR_I, DAT_I[15:0] );
-//RegCPUData #( 16 ) U_0_032( CPU_rd_dout_h , 7'd032, 16'h0000, RST_I, CLK_I, Wr, ADR_I, DAT_I[15:0] );
- RegCPUData #( 1 ) U_0_033( Line_loop_en , 7'd033, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[0:0] );
- RegCPUData #( 3 ) U_0_034( Speed , 7'd034, 3'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[2:0] );
-
- // New registers for controlling the MDIO interface
- RegCPUData #( 9 ) U_0_035( MIIMODER , 7'd035, 9'h064, RST_I, CLK_I, Wr, ADR_I, DAT_I[8:0] );
- // Reg #36 is MIICOMMAND - implemented separately below
- RegCPUData #( 13 ) U_0_037( MIIADDRESS , 7'd037, 13'h0000, RST_I, CLK_I, Wr, ADR_I, DAT_I[12:0] );
- RegCPUData #( 16 ) U_0_038( MIITX_DATA , 7'd038, 16'h0000, RST_I, CLK_I, Wr, ADR_I, DAT_I[15:0] );
-
- // New FC register
- RegCPUData #( 16 ) U_0_041( fc_padtime , 7'd041, 1'h0, RST_I, CLK_I, Wr, ADR_I, DAT_I[15:0] );
-
- // Asserted in first clock of 2-cycle access, negated otherwise
- wire Access = ~ACK_O & STB_I & CYC_I;
-
- // Asserted in first clock of 2-cycle write access, negated otherwise
- assign Wr = Access & WE_I;
-
- // MIICOMMAND register - needs special treatment because of auto-resetting bits
- always @ ( posedge RST_I or posedge CLK_I )
- if ( RST_I )
- MIICOMMAND <= 0;
- else
- begin
- if ( Wr & ( ADR_I == 7'd036 ) )
- // Write access
- MIICOMMAND <= DAT_I;
- else
- begin
- if ( WCtrlDataStart )
- MIICOMMAND[2] <= 0;
- if ( RStatStart )
- MIICOMMAND[1] <= 0;
- end
- end
-
- // MIIRX_DATA register
- always @ ( posedge RST_I or posedge CLK_I )
- if ( RST_I )
- MIIRX_DATA <= 0;
- else
- if ( UpdateMIIRX_DATAReg )
- MIIRX_DATA <= Prsd;
-
- // ACK_O is asserted in second clock of 2-cycle access, negated otherwise
- always @ ( posedge RST_I or posedge CLK_I )
- if ( RST_I )
- ACK_O <= 0;
- else
- ACK_O <= Access;
-
- always @ ( posedge RST_I or posedge CLK_I )
- if(RST_I)
- DAT_O <= 0;
- else
- begin
- DAT_O <=0;
- if ( Access & ~WE_I )
- casez ( ADR_I )
- 7'd00: DAT_O <= Tx_Hwmark;
- 7'd01: DAT_O <= Tx_Lwmark;
- 7'd02: DAT_O <= pause_frame_send_en;
- 7'd03: DAT_O <= pause_quanta_set;
- 7'd04: DAT_O <= IFGset;
- 7'd05: DAT_O <= FullDuplex;
- 7'd06: DAT_O <= MaxRetry;
- 7'd07: DAT_O <= MAC_tx_add_en;
- 7'd08: DAT_O <= MAC_tx_add_prom_data;
- 7'd09: DAT_O <= MAC_tx_add_prom_add;
- 7'd10: DAT_O <= MAC_tx_add_prom_wr;
- 7'd11: DAT_O <= tx_pause_en;
- 7'd12: DAT_O <= fc_hwmark;
- 7'd13: DAT_O <= fc_lwmark;
- 7'd14: DAT_O <= MAC_rx_add_chk_en;
- 7'd15: DAT_O <= MAC_rx_add_prom_data;
- 7'd16: DAT_O <= MAC_rx_add_prom_add;
- 7'd17: DAT_O <= MAC_rx_add_prom_wr;
- 7'd18: DAT_O <= broadcast_filter_en;
- 7'd19: DAT_O <= broadcast_bucket_depth;
- 7'd20: DAT_O <= broadcast_bucket_interval;
- 7'd21: DAT_O <= RX_APPEND_CRC;
- 7'd22: DAT_O <= Rx_Hwmark;
- 7'd23: DAT_O <= Rx_Lwmark;
- 7'd24: DAT_O <= CRC_chk_en;
- 7'd25: DAT_O <= RX_IFG_SET;
- 7'd26: DAT_O <= RX_MAX_LENGTH;
- 7'd27: DAT_O <= RX_MIN_LENGTH;
- 7'd28: DAT_O <= CPU_rd_addr;
- 7'd29: DAT_O <= CPU_rd_apply;
- 7'd30: DAT_O <= CPU_rd_grant;
- 7'd31: DAT_O <= CPU_rd_dout;
- //7'd32: DAT_O <= CPU_rd_dout[31:16];
- 7'd33: DAT_O <= Line_loop_en;
- 7'd34: DAT_O <= Speed;
-
- // New registers for controlling MII interface
- 7'd35: DAT_O <= MIIMODER;
- 7'd36: DAT_O <= MIICOMMAND;
- 7'd37: DAT_O <= MIIADDRESS;
- 7'd38: DAT_O <= MIITX_DATA;
- 7'd39: DAT_O <= MIIRX_DATA;
- 7'd40: DAT_O <= MIISTATUS;
- 7'd41: DAT_O <= fc_padtime;
- endcase
- end
-
-endmodule
-
-module RegCPUData(
- RegOut,
- RegAddr,
- RegInit,
-
- Reset,
- Clk,
- Wr,
- Addr,
- WrData
-);
-
- parameter WIDTH = 16;
-
- output reg [WIDTH-1:0] RegOut;
- input [6:0] RegAddr;
- input [WIDTH-1:0] RegInit;
-
- input Reset;
- input Clk;
- input Wr;
- input [6:0] Addr;
- input [WIDTH-1:0] WrData;
-
- always @( posedge Reset or posedge Clk )
- if ( Reset )
- RegOut <= RegInit;
- else
- if ( Wr && ( Addr == RegAddr ) )
- RegOut <= WrData;
-
-endmodule
diff --git a/eth/rtl/verilog/TECH/eth_clk_div2.v b/eth/rtl/verilog/TECH/eth_clk_div2.v deleted file mode 100644 index 994907d44..000000000 --- a/eth/rtl/verilog/TECH/eth_clk_div2.v +++ /dev/null @@ -1,71 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// eth_clk_div2.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: CLK_DIV2.v,v $
-// Revision 1.3 2006/01/19 14:07:56 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:20 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:44 Administrator
-// no message
-//
-
-
-//////////////////////////////////////////////////////////////////////
-// This file can only used for simulation .
-// You need to replace it with your own element according to technology
-//////////////////////////////////////////////////////////////////////
-
-module eth_clk_div2 (
- input Reset,
- input IN,
- output reg OUT
-);
-
-always @ (posedge IN or posedge Reset)
- if (Reset)
- OUT <= 0;
- else
- OUT <= ~OUT;
-
-endmodule
diff --git a/eth/rtl/verilog/TECH/eth_clk_switch.v b/eth/rtl/verilog/TECH/eth_clk_switch.v deleted file mode 100644 index c5375743f..000000000 --- a/eth/rtl/verilog/TECH/eth_clk_switch.v +++ /dev/null @@ -1,81 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// eth_clk_switch.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode/////
-//// ////
-//// Author(s): ////
-//// - Jon Gao (gaojon@yahoo.com) ////
-//// ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: CLK_SWITCH.v,v $
-// Revision 1.3 2006/01/19 14:07:56 maverickist
-// verification is complete.
-//
-// Revision 1.2 2005/12/16 06:44:20 Administrator
-// replaced tab with space.
-// passed 9.6k length frame test.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:44 Administrator
-// no message
-//
-
-`include "header.vh"
-
-//////////////////////////////////////////////////////////////////////
-// This file can only used for simulation .
-// You need to replace it with your own element according to technology
-//////////////////////////////////////////////////////////////////////
-module eth_clk_switch (
- input IN_0,
- input IN_1,
- input SW,
- output OUT
-);
-
-`ifdef MAC_TARGET_XILINX
-
- BUFGMUX U_BUFGMUX (
- .O ( OUT ),
- .I0( IN_0 ),
- .I1( IN_1 ),
- .S ( SW )
- );
-
-`else
-
- assign OUT = SW ? IN_1 : IN_0;
-
-`endif
-
-endmodule
diff --git a/eth/rtl/verilog/TECH/xilinx/BUFGMUX.v b/eth/rtl/verilog/TECH/xilinx/BUFGMUX.v deleted file mode 100644 index f5bb4a74a..000000000 --- a/eth/rtl/verilog/TECH/xilinx/BUFGMUX.v +++ /dev/null @@ -1,64 +0,0 @@ -// $Header: /devl/xcs/repo/env/Databases/CAEInterfaces/verunilibs/data/unisims/BUFGMUX.v,v 1.9.34.2 2005/10/21 20:45:30 wloo Exp $ -/////////////////////////////////////////////////////////////////////////////// -// Copyright (c) 1995/2004 Xilinx, Inc. -// All Right Reserved. -/////////////////////////////////////////////////////////////////////////////// -// ____ ____ -// / /\/ / -// /___/ \ / Vendor : Xilinx -// \ \ \/ Version : 7.1i (H.19) -// \ \ Description : Xilinx Functional Simulation Library Component -// / / Global Clock Mux Buffer with Output State 0 -// /___/ /\ Filename : BUFGMUX.v -// \ \ / \ Timestamp : Thu Mar 25 16:42:14 PST 2004 -// \___\/\___\ -// -// Revision: -// 03/23/04 - Initial version. - -`timescale 100 ps / 10 ps - -module BUFGMUX (O, I0, I1, S); - - output O; - - input I0, I1, S; - - reg q0, q1; - reg q0_enable, q1_enable; - - tri0 GSR = glbl.GSR; - - bufif1 B0 (O, I0, q0); - bufif1 B1 (O, I1, q1); - pulldown P1 (O); - - always @(GSR or I0 or S or q0_enable) - if (GSR) - q0 <= 1; - else if (!I0) - q0 <= !S && q0_enable; - - always @(GSR or I1 or S or q1_enable) - if (GSR) - q1 <= 0; - else if (!I1) - q1 <= S && q1_enable; - - always @(GSR or q1 or I0) - if (GSR) - q0_enable <= 1; - else if (q1) - q0_enable <= 0; - else if (I0) - q0_enable <= !q1; - - always @(GSR or q0 or I1) - if (GSR) - q1_enable <= 0; - else if (q0) - q1_enable <= 0; - else if (I1) - q1_enable <= !q0; - -endmodule diff --git a/eth/rtl/verilog/TECH/xilinx/RAMB16_S36_S36.v b/eth/rtl/verilog/TECH/xilinx/RAMB16_S36_S36.v deleted file mode 100644 index 80545a9b8..000000000 --- a/eth/rtl/verilog/TECH/xilinx/RAMB16_S36_S36.v +++ /dev/null @@ -1,2204 +0,0 @@ -// $Header: /devl/xcs/repo/env/Databases/CAEInterfaces/verunilibs/data/unisims/RAMB16_S36_S36.v,v 1.9 2005/03/14 22:54:41 wloo Exp $ -/////////////////////////////////////////////////////////////////////////////// -// Copyright (c) 1995/2005 Xilinx, Inc. -// All Right Reserved. -/////////////////////////////////////////////////////////////////////////////// -// ____ ____ -// / /\/ / -// /___/ \ / Vendor : Xilinx -// \ \ \/ Version : 8.1i (I.13) -// \ \ Description : Xilinx Functional Simulation Library Component -// / / 16K-Bit Data and 2K-Bit Parity Dual Port Block RAM -// /___/ /\ Filename : RAMB16_S36_S36.v -// \ \ / \ Timestamp : Thu Mar 10 16:43:36 PST 2005 -// \___\/\___\ -// -// Revision: -// 03/23/04 - Initial version. -// End Revision - -`ifdef legacy_model - -`timescale 1 ps / 1 ps - -module RAMB16_S36_S36 (DOA, DOB, DOPA, DOPB, ADDRA, ADDRB, CLKA, CLKB, DIA, DIB, DIPA, DIPB, ENA, ENB, SSRA, SSRB, WEA, WEB); - - parameter INIT_A = 36'h0; - parameter INIT_B = 36'h0; - parameter SRVAL_A = 36'h0; - parameter SRVAL_B = 36'h0; - parameter WRITE_MODE_A = "WRITE_FIRST"; - parameter WRITE_MODE_B = "WRITE_FIRST"; - parameter SIM_COLLISION_CHECK = "ALL"; - localparam SETUP_ALL = 1000; - localparam SETUP_READ_FIRST = 3000; - - parameter INIT_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_04 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_05 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_06 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_07 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_08 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_09 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_0A = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_0B = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_0C = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_0D = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_0E = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_0F = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_10 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_11 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_12 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_13 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_14 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_15 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_16 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_17 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_18 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_19 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_1A = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_1B = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_1C = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_1D = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_1E = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_1F = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_20 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_21 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_22 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_23 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_24 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_25 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_26 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_27 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_28 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_29 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_2A = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_2B = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_2C = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_2D = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_2E = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_2F = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_30 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_31 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_32 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_33 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_34 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_35 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_36 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_37 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_38 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_39 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_3A = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_3B = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_3C = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_3D = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_3E = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_3F = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_04 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_05 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_06 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_07 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - - output [31:0] DOA; - output [3:0] DOPA; - reg [31:0] doa_out; - reg [3:0] dopa_out; - wire doa_out0, doa_out1, doa_out2, doa_out3, doa_out4, doa_out5, doa_out6, doa_out7, doa_out8, doa_out9, doa_out10, doa_out11, doa_out12, doa_out13, doa_out14, doa_out15, doa_out16, doa_out17, doa_out18, doa_out19, doa_out20, doa_out21, doa_out22, doa_out23, doa_out24, doa_out25, doa_out26, doa_out27, doa_out28, doa_out29, doa_out30, doa_out31; - wire dopa0_out, dopa1_out, dopa2_out, dopa3_out; - - input [8:0] ADDRA; - input [31:0] DIA; - input [3:0] DIPA; - input ENA, CLKA, WEA, SSRA; - - output [31:0] DOB; - output [3:0] DOPB; - reg [31:0] dob_out; - reg [3:0] dopb_out; - wire dob_out0, dob_out1, dob_out2, dob_out3, dob_out4, dob_out5, dob_out6, dob_out7, dob_out8, dob_out9, dob_out10, dob_out11, dob_out12, dob_out13, dob_out14, dob_out15, dob_out16, dob_out17, dob_out18, dob_out19, dob_out20, dob_out21, dob_out22, dob_out23, dob_out24, dob_out25, dob_out26, dob_out27, dob_out28, dob_out29, dob_out30, dob_out31; - wire dopb0_out, dopb1_out, dopb2_out, dopb3_out; - - input [8:0] ADDRB; - input [31:0] DIB; - input [3:0] DIPB; - input ENB, CLKB, WEB, SSRB; - - reg [18431:0] mem; - reg [8:0] count; - reg [1:0] wr_mode_a, wr_mode_b; - - reg [5:0] dmi, dbi; - reg [5:0] pmi, pbi; - - wire [8:0] addra_int; - reg [8:0] addra_reg; - wire [31:0] dia_int; - wire [3:0] dipa_int; - wire ena_int, clka_int, wea_int, ssra_int; - reg ena_reg, wea_reg, ssra_reg; - wire [8:0] addrb_int; - reg [8:0] addrb_reg; - wire [31:0] dib_int; - wire [3:0] dipb_int; - wire enb_int, clkb_int, web_int, ssrb_int; - reg display_flag; - reg enb_reg, web_reg, ssrb_reg; - - time time_clka, time_clkb; - time time_clka_clkb; - time time_clkb_clka; - - reg setup_all_a_b; - reg setup_all_b_a; - reg setup_zero; - reg setup_rf_a_b; - reg setup_rf_b_a; - reg [1:0] data_collision, data_collision_a_b, data_collision_b_a; - reg memory_collision, memory_collision_a_b, memory_collision_b_a; - reg address_collision, address_collision_a_b, address_collision_b_a; - reg change_clka; - reg change_clkb; - - wire [14:0] data_addra_int; - wire [14:0] data_addra_reg; - wire [14:0] data_addrb_int; - wire [14:0] data_addrb_reg; - wire [15:0] parity_addra_int; - wire [15:0] parity_addra_reg; - wire [15:0] parity_addrb_int; - wire [15:0] parity_addrb_reg; - - tri0 GSR = glbl.GSR; - - always @(GSR) - if (GSR) begin - assign doa_out = INIT_A[31:0]; - assign dopa_out = INIT_A[35:32]; - assign dob_out = INIT_B[31:0]; - assign dopb_out = INIT_B[35:32]; - end - else begin - deassign doa_out; - deassign dopa_out; - deassign dob_out; - deassign dopb_out; - end - - buf b_doa_out0 (doa_out0, doa_out[0]); - buf b_doa_out1 (doa_out1, doa_out[1]); - buf b_doa_out2 (doa_out2, doa_out[2]); - buf b_doa_out3 (doa_out3, doa_out[3]); - buf b_doa_out4 (doa_out4, doa_out[4]); - buf b_doa_out5 (doa_out5, doa_out[5]); - buf b_doa_out6 (doa_out6, doa_out[6]); - buf b_doa_out7 (doa_out7, doa_out[7]); - buf b_doa_out8 (doa_out8, doa_out[8]); - buf b_doa_out9 (doa_out9, doa_out[9]); - buf b_doa_out10 (doa_out10, doa_out[10]); - buf b_doa_out11 (doa_out11, doa_out[11]); - buf b_doa_out12 (doa_out12, doa_out[12]); - buf b_doa_out13 (doa_out13, doa_out[13]); - buf b_doa_out14 (doa_out14, doa_out[14]); - buf b_doa_out15 (doa_out15, doa_out[15]); - buf b_doa_out16 (doa_out16, doa_out[16]); - buf b_doa_out17 (doa_out17, doa_out[17]); - buf b_doa_out18 (doa_out18, doa_out[18]); - buf b_doa_out19 (doa_out19, doa_out[19]); - buf b_doa_out20 (doa_out20, doa_out[20]); - buf b_doa_out21 (doa_out21, doa_out[21]); - buf b_doa_out22 (doa_out22, doa_out[22]); - buf b_doa_out23 (doa_out23, doa_out[23]); - buf b_doa_out24 (doa_out24, doa_out[24]); - buf b_doa_out25 (doa_out25, doa_out[25]); - buf b_doa_out26 (doa_out26, doa_out[26]); - buf b_doa_out27 (doa_out27, doa_out[27]); - buf b_doa_out28 (doa_out28, doa_out[28]); - buf b_doa_out29 (doa_out29, doa_out[29]); - buf b_doa_out30 (doa_out30, doa_out[30]); - buf b_doa_out31 (doa_out31, doa_out[31]); - buf b_dopa_out0 (dopa_out0, dopa_out[0]); - buf b_dopa_out1 (dopa_out1, dopa_out[1]); - buf b_dopa_out2 (dopa_out2, dopa_out[2]); - buf b_dopa_out3 (dopa_out3, dopa_out[3]); - buf b_dob_out0 (dob_out0, dob_out[0]); - buf b_dob_out1 (dob_out1, dob_out[1]); - buf b_dob_out2 (dob_out2, dob_out[2]); - buf b_dob_out3 (dob_out3, dob_out[3]); - buf b_dob_out4 (dob_out4, dob_out[4]); - buf b_dob_out5 (dob_out5, dob_out[5]); - buf b_dob_out6 (dob_out6, dob_out[6]); - buf b_dob_out7 (dob_out7, dob_out[7]); - buf b_dob_out8 (dob_out8, dob_out[8]); - buf b_dob_out9 (dob_out9, dob_out[9]); - buf b_dob_out10 (dob_out10, dob_out[10]); - buf b_dob_out11 (dob_out11, dob_out[11]); - buf b_dob_out12 (dob_out12, dob_out[12]); - buf b_dob_out13 (dob_out13, dob_out[13]); - buf b_dob_out14 (dob_out14, dob_out[14]); - buf b_dob_out15 (dob_out15, dob_out[15]); - buf b_dob_out16 (dob_out16, dob_out[16]); - buf b_dob_out17 (dob_out17, dob_out[17]); - buf b_dob_out18 (dob_out18, dob_out[18]); - buf b_dob_out19 (dob_out19, dob_out[19]); - buf b_dob_out20 (dob_out20, dob_out[20]); - buf b_dob_out21 (dob_out21, dob_out[21]); - buf b_dob_out22 (dob_out22, dob_out[22]); - buf b_dob_out23 (dob_out23, dob_out[23]); - buf b_dob_out24 (dob_out24, dob_out[24]); - buf b_dob_out25 (dob_out25, dob_out[25]); - buf b_dob_out26 (dob_out26, dob_out[26]); - buf b_dob_out27 (dob_out27, dob_out[27]); - buf b_dob_out28 (dob_out28, dob_out[28]); - buf b_dob_out29 (dob_out29, dob_out[29]); - buf b_dob_out30 (dob_out30, dob_out[30]); - buf b_dob_out31 (dob_out31, dob_out[31]); - buf b_dopb_out0 (dopb_out0, dopb_out[0]); - buf b_dopb_out1 (dopb_out1, dopb_out[1]); - buf b_dopb_out2 (dopb_out2, dopb_out[2]); - buf b_dopb_out3 (dopb_out3, dopb_out[3]); - - buf b_doa0 (DOA[0], doa_out0); - buf b_doa1 (DOA[1], doa_out1); - buf b_doa2 (DOA[2], doa_out2); - buf b_doa3 (DOA[3], doa_out3); - buf b_doa4 (DOA[4], doa_out4); - buf b_doa5 (DOA[5], doa_out5); - buf b_doa6 (DOA[6], doa_out6); - buf b_doa7 (DOA[7], doa_out7); - buf b_doa8 (DOA[8], doa_out8); - buf b_doa9 (DOA[9], doa_out9); - buf b_doa10 (DOA[10], doa_out10); - buf b_doa11 (DOA[11], doa_out11); - buf b_doa12 (DOA[12], doa_out12); - buf b_doa13 (DOA[13], doa_out13); - buf b_doa14 (DOA[14], doa_out14); - buf b_doa15 (DOA[15], doa_out15); - buf b_doa16 (DOA[16], doa_out16); - buf b_doa17 (DOA[17], doa_out17); - buf b_doa18 (DOA[18], doa_out18); - buf b_doa19 (DOA[19], doa_out19); - buf b_doa20 (DOA[20], doa_out20); - buf b_doa21 (DOA[21], doa_out21); - buf b_doa22 (DOA[22], doa_out22); - buf b_doa23 (DOA[23], doa_out23); - buf b_doa24 (DOA[24], doa_out24); - buf b_doa25 (DOA[25], doa_out25); - buf b_doa26 (DOA[26], doa_out26); - buf b_doa27 (DOA[27], doa_out27); - buf b_doa28 (DOA[28], doa_out28); - buf b_doa29 (DOA[29], doa_out29); - buf b_doa30 (DOA[30], doa_out30); - buf b_doa31 (DOA[31], doa_out31); - buf b_dopa0 (DOPA[0], dopa_out0); - buf b_dopa1 (DOPA[1], dopa_out1); - buf b_dopa2 (DOPA[2], dopa_out2); - buf b_dopa3 (DOPA[3], dopa_out3); - buf b_dob0 (DOB[0], dob_out0); - buf b_dob1 (DOB[1], dob_out1); - buf b_dob2 (DOB[2], dob_out2); - buf b_dob3 (DOB[3], dob_out3); - buf b_dob4 (DOB[4], dob_out4); - buf b_dob5 (DOB[5], dob_out5); - buf b_dob6 (DOB[6], dob_out6); - buf b_dob7 (DOB[7], dob_out7); - buf b_dob8 (DOB[8], dob_out8); - buf b_dob9 (DOB[9], dob_out9); - buf b_dob10 (DOB[10], dob_out10); - buf b_dob11 (DOB[11], dob_out11); - buf b_dob12 (DOB[12], dob_out12); - buf b_dob13 (DOB[13], dob_out13); - buf b_dob14 (DOB[14], dob_out14); - buf b_dob15 (DOB[15], dob_out15); - buf b_dob16 (DOB[16], dob_out16); - buf b_dob17 (DOB[17], dob_out17); - buf b_dob18 (DOB[18], dob_out18); - buf b_dob19 (DOB[19], dob_out19); - buf b_dob20 (DOB[20], dob_out20); - buf b_dob21 (DOB[21], dob_out21); - buf b_dob22 (DOB[22], dob_out22); - buf b_dob23 (DOB[23], dob_out23); - buf b_dob24 (DOB[24], dob_out24); - buf b_dob25 (DOB[25], dob_out25); - buf b_dob26 (DOB[26], dob_out26); - buf b_dob27 (DOB[27], dob_out27); - buf b_dob28 (DOB[28], dob_out28); - buf b_dob29 (DOB[29], dob_out29); - buf b_dob30 (DOB[30], dob_out30); - buf b_dob31 (DOB[31], dob_out31); - buf b_dopb0 (DOPB[0], dopb_out0); - buf b_dopb1 (DOPB[1], dopb_out1); - buf b_dopb2 (DOPB[2], dopb_out2); - buf b_dopb3 (DOPB[3], dopb_out3); - - buf b_addra_0 (addra_int[0], ADDRA[0]); - buf b_addra_1 (addra_int[1], ADDRA[1]); - buf b_addra_2 (addra_int[2], ADDRA[2]); - buf b_addra_3 (addra_int[3], ADDRA[3]); - buf b_addra_4 (addra_int[4], ADDRA[4]); - buf b_addra_5 (addra_int[5], ADDRA[5]); - buf b_addra_6 (addra_int[6], ADDRA[6]); - buf b_addra_7 (addra_int[7], ADDRA[7]); - buf b_addra_8 (addra_int[8], ADDRA[8]); - buf b_dia_0 (dia_int[0], DIA[0]); - buf b_dia_1 (dia_int[1], DIA[1]); - buf b_dia_2 (dia_int[2], DIA[2]); - buf b_dia_3 (dia_int[3], DIA[3]); - buf b_dia_4 (dia_int[4], DIA[4]); - buf b_dia_5 (dia_int[5], DIA[5]); - buf b_dia_6 (dia_int[6], DIA[6]); - buf b_dia_7 (dia_int[7], DIA[7]); - buf b_dia_8 (dia_int[8], DIA[8]); - buf b_dia_9 (dia_int[9], DIA[9]); - buf b_dia_10 (dia_int[10], DIA[10]); - buf b_dia_11 (dia_int[11], DIA[11]); - buf b_dia_12 (dia_int[12], DIA[12]); - buf b_dia_13 (dia_int[13], DIA[13]); - buf b_dia_14 (dia_int[14], DIA[14]); - buf b_dia_15 (dia_int[15], DIA[15]); - buf b_dia_16 (dia_int[16], DIA[16]); - buf b_dia_17 (dia_int[17], DIA[17]); - buf b_dia_18 (dia_int[18], DIA[18]); - buf b_dia_19 (dia_int[19], DIA[19]); - buf b_dia_20 (dia_int[20], DIA[20]); - buf b_dia_21 (dia_int[21], DIA[21]); - buf b_dia_22 (dia_int[22], DIA[22]); - buf b_dia_23 (dia_int[23], DIA[23]); - buf b_dia_24 (dia_int[24], DIA[24]); - buf b_dia_25 (dia_int[25], DIA[25]); - buf b_dia_26 (dia_int[26], DIA[26]); - buf b_dia_27 (dia_int[27], DIA[27]); - buf b_dia_28 (dia_int[28], DIA[28]); - buf b_dia_29 (dia_int[29], DIA[29]); - buf b_dia_30 (dia_int[30], DIA[30]); - buf b_dia_31 (dia_int[31], DIA[31]); - buf b_dipa_0 (dipa_int[0], DIPA[0]); - buf b_dipa_1 (dipa_int[1], DIPA[1]); - buf b_dipa_2 (dipa_int[2], DIPA[2]); - buf b_dipa_3 (dipa_int[3], DIPA[3]); - buf b_ena (ena_int, ENA); - buf b_clka (clka_int, CLKA); - buf b_ssra (ssra_int, SSRA); - buf b_wea (wea_int, WEA); - buf b_addrb_0 (addrb_int[0], ADDRB[0]); - buf b_addrb_1 (addrb_int[1], ADDRB[1]); - buf b_addrb_2 (addrb_int[2], ADDRB[2]); - buf b_addrb_3 (addrb_int[3], ADDRB[3]); - buf b_addrb_4 (addrb_int[4], ADDRB[4]); - buf b_addrb_5 (addrb_int[5], ADDRB[5]); - buf b_addrb_6 (addrb_int[6], ADDRB[6]); - buf b_addrb_7 (addrb_int[7], ADDRB[7]); - buf b_addrb_8 (addrb_int[8], ADDRB[8]); - buf b_dib_0 (dib_int[0], DIB[0]); - buf b_dib_1 (dib_int[1], DIB[1]); - buf b_dib_2 (dib_int[2], DIB[2]); - buf b_dib_3 (dib_int[3], DIB[3]); - buf b_dib_4 (dib_int[4], DIB[4]); - buf b_dib_5 (dib_int[5], DIB[5]); - buf b_dib_6 (dib_int[6], DIB[6]); - buf b_dib_7 (dib_int[7], DIB[7]); - buf b_dib_8 (dib_int[8], DIB[8]); - buf b_dib_9 (dib_int[9], DIB[9]); - buf b_dib_10 (dib_int[10], DIB[10]); - buf b_dib_11 (dib_int[11], DIB[11]); - buf b_dib_12 (dib_int[12], DIB[12]); - buf b_dib_13 (dib_int[13], DIB[13]); - buf b_dib_14 (dib_int[14], DIB[14]); - buf b_dib_15 (dib_int[15], DIB[15]); - buf b_dib_16 (dib_int[16], DIB[16]); - buf b_dib_17 (dib_int[17], DIB[17]); - buf b_dib_18 (dib_int[18], DIB[18]); - buf b_dib_19 (dib_int[19], DIB[19]); - buf b_dib_20 (dib_int[20], DIB[20]); - buf b_dib_21 (dib_int[21], DIB[21]); - buf b_dib_22 (dib_int[22], DIB[22]); - buf b_dib_23 (dib_int[23], DIB[23]); - buf b_dib_24 (dib_int[24], DIB[24]); - buf b_dib_25 (dib_int[25], DIB[25]); - buf b_dib_26 (dib_int[26], DIB[26]); - buf b_dib_27 (dib_int[27], DIB[27]); - buf b_dib_28 (dib_int[28], DIB[28]); - buf b_dib_29 (dib_int[29], DIB[29]); - buf b_dib_30 (dib_int[30], DIB[30]); - buf b_dib_31 (dib_int[31], DIB[31]); - buf b_dipb_0 (dipb_int[0], DIPB[0]); - buf b_dipb_1 (dipb_int[1], DIPB[1]); - buf b_dipb_2 (dipb_int[2], DIPB[2]); - buf b_dipb_3 (dipb_int[3], DIPB[3]); - buf b_enb (enb_int, ENB); - buf b_clkb (clkb_int, CLKB); - buf b_ssrb (ssrb_int, SSRB); - buf b_web (web_int, WEB); - - initial begin - for (count = 0; count < 256; count = count + 1) begin - mem[count] <= INIT_00[count]; - mem[256 * 1 + count] <= INIT_01[count]; - mem[256 * 2 + count] <= INIT_02[count]; - mem[256 * 3 + count] <= INIT_03[count]; - mem[256 * 4 + count] <= INIT_04[count]; - mem[256 * 5 + count] <= INIT_05[count]; - mem[256 * 6 + count] <= INIT_06[count]; - mem[256 * 7 + count] <= INIT_07[count]; - mem[256 * 8 + count] <= INIT_08[count]; - mem[256 * 9 + count] <= INIT_09[count]; - mem[256 * 10 + count] <= INIT_0A[count]; - mem[256 * 11 + count] <= INIT_0B[count]; - mem[256 * 12 + count] <= INIT_0C[count]; - mem[256 * 13 + count] <= INIT_0D[count]; - mem[256 * 14 + count] <= INIT_0E[count]; - mem[256 * 15 + count] <= INIT_0F[count]; - mem[256 * 16 + count] <= INIT_10[count]; - mem[256 * 17 + count] <= INIT_11[count]; - mem[256 * 18 + count] <= INIT_12[count]; - mem[256 * 19 + count] <= INIT_13[count]; - mem[256 * 20 + count] <= INIT_14[count]; - mem[256 * 21 + count] <= INIT_15[count]; - mem[256 * 22 + count] <= INIT_16[count]; - mem[256 * 23 + count] <= INIT_17[count]; - mem[256 * 24 + count] <= INIT_18[count]; - mem[256 * 25 + count] <= INIT_19[count]; - mem[256 * 26 + count] <= INIT_1A[count]; - mem[256 * 27 + count] <= INIT_1B[count]; - mem[256 * 28 + count] <= INIT_1C[count]; - mem[256 * 29 + count] <= INIT_1D[count]; - mem[256 * 30 + count] <= INIT_1E[count]; - mem[256 * 31 + count] <= INIT_1F[count]; - mem[256 * 32 + count] <= INIT_20[count]; - mem[256 * 33 + count] <= INIT_21[count]; - mem[256 * 34 + count] <= INIT_22[count]; - mem[256 * 35 + count] <= INIT_23[count]; - mem[256 * 36 + count] <= INIT_24[count]; - mem[256 * 37 + count] <= INIT_25[count]; - mem[256 * 38 + count] <= INIT_26[count]; - mem[256 * 39 + count] <= INIT_27[count]; - mem[256 * 40 + count] <= INIT_28[count]; - mem[256 * 41 + count] <= INIT_29[count]; - mem[256 * 42 + count] <= INIT_2A[count]; - mem[256 * 43 + count] <= INIT_2B[count]; - mem[256 * 44 + count] <= INIT_2C[count]; - mem[256 * 45 + count] <= INIT_2D[count]; - mem[256 * 46 + count] <= INIT_2E[count]; - mem[256 * 47 + count] <= INIT_2F[count]; - mem[256 * 48 + count] <= INIT_30[count]; - mem[256 * 49 + count] <= INIT_31[count]; - mem[256 * 50 + count] <= INIT_32[count]; - mem[256 * 51 + count] <= INIT_33[count]; - mem[256 * 52 + count] <= INIT_34[count]; - mem[256 * 53 + count] <= INIT_35[count]; - mem[256 * 54 + count] <= INIT_36[count]; - mem[256 * 55 + count] <= INIT_37[count]; - mem[256 * 56 + count] <= INIT_38[count]; - mem[256 * 57 + count] <= INIT_39[count]; - mem[256 * 58 + count] <= INIT_3A[count]; - mem[256 * 59 + count] <= INIT_3B[count]; - mem[256 * 60 + count] <= INIT_3C[count]; - mem[256 * 61 + count] <= INIT_3D[count]; - mem[256 * 62 + count] <= INIT_3E[count]; - mem[256 * 63 + count] <= INIT_3F[count]; - mem[256 * 64 + count] <= INITP_00[count]; - mem[256 * 65 + count] <= INITP_01[count]; - mem[256 * 66 + count] <= INITP_02[count]; - mem[256 * 67 + count] <= INITP_03[count]; - mem[256 * 68 + count] <= INITP_04[count]; - mem[256 * 69 + count] <= INITP_05[count]; - mem[256 * 70 + count] <= INITP_06[count]; - mem[256 * 71 + count] <= INITP_07[count]; - end - address_collision <= 0; - address_collision_a_b <= 0; - address_collision_b_a <= 0; - change_clka <= 0; - change_clkb <= 0; - data_collision <= 0; - data_collision_a_b <= 0; - data_collision_b_a <= 0; - memory_collision <= 0; - memory_collision_a_b <= 0; - memory_collision_b_a <= 0; - setup_all_a_b <= 0; - setup_all_b_a <= 0; - setup_zero <= 0; - setup_rf_a_b <= 0; - setup_rf_b_a <= 0; - end - - assign data_addra_int = addra_int * 32; - assign data_addra_reg = addra_reg * 32; - assign data_addrb_int = addrb_int * 32; - assign data_addrb_reg = addrb_reg * 32; - assign parity_addra_int = 16384 + addra_int * 4; - assign parity_addra_reg = 16384 + addra_reg * 4; - assign parity_addrb_int = 16384 + addrb_int * 4; - assign parity_addrb_reg = 16384 + addrb_reg * 4; - - - initial begin - - display_flag = 1; - - case (SIM_COLLISION_CHECK) - - "NONE" : begin - assign setup_all_a_b = 1'b0; - assign setup_all_b_a = 1'b0; - assign setup_zero = 1'b0; - assign setup_rf_a_b = 1'b0; - assign setup_rf_b_a = 1'b0; - assign display_flag = 0; - end - "WARNING_ONLY" : begin - assign data_collision = 2'b00; - assign data_collision_a_b = 2'b00; - assign data_collision_b_a = 2'b00; - assign memory_collision = 1'b0; - assign memory_collision_a_b = 1'b0; - assign memory_collision_b_a = 1'b0; - end - "GENERATE_X_ONLY" : begin - assign display_flag = 0; - end - "ALL" : ; - default : begin - $display("Attribute Syntax Error : The Attribute SIM_COLLISION_CHECK on RAMB16_S36_S36 instance %m is set to %s. Legal values for this attribute are ALL, NONE, WARNING_ONLY or GENERATE_X_ONLY.", SIM_COLLISION_CHECK); - $finish; - end - - endcase // case(SIM_COLLISION_CHECK) - - end // initial begin - - - always @(posedge clka_int) begin - time_clka = $time; - #0 time_clkb_clka = time_clka - time_clkb; - change_clka = ~change_clka; - end - - always @(posedge clkb_int) begin - time_clkb = $time; - #0 time_clka_clkb = time_clkb - time_clka; - change_clkb = ~change_clkb; - end - - always @(change_clkb) begin - if ((0 < time_clka_clkb) && (time_clka_clkb < SETUP_ALL)) - setup_all_a_b = 1; - if ((0 < time_clka_clkb) && (time_clka_clkb < SETUP_READ_FIRST)) - setup_rf_a_b = 1; - end - - always @(change_clka) begin - if ((0 < time_clkb_clka) && (time_clkb_clka < SETUP_ALL)) - setup_all_b_a = 1; - if ((0 < time_clkb_clka) && (time_clkb_clka < SETUP_READ_FIRST)) - setup_rf_b_a = 1; - end - - always @(change_clkb or change_clka) begin - if ((time_clkb_clka == 0) && (time_clka_clkb == 0)) - setup_zero = 1; - end - - always @(posedge setup_zero) begin - if ((ena_int == 1) && (wea_int == 1) && - (enb_int == 1) && (web_int == 1) && - (data_addra_int[14:5] == data_addrb_int[14:5])) - memory_collision <= 1; - end - - always @(posedge setup_all_a_b or posedge setup_rf_a_b) begin - if ((ena_reg == 1) && (wea_reg == 1) && - (enb_int == 1) && (web_int == 1) && - (data_addra_reg[14:5] == data_addrb_int[14:5])) - memory_collision_a_b <= 1; - end - - always @(posedge setup_all_b_a or posedge setup_rf_b_a) begin - if ((ena_int == 1) && (wea_int == 1) && - (enb_reg == 1) && (web_reg == 1) && - (data_addra_int[14:5] == data_addrb_reg[14:5])) - memory_collision_b_a <= 1; - end - - always @(posedge setup_all_a_b) begin - if (data_addra_reg[14:5] == data_addrb_int[14:5]) begin - if ((ena_reg == 1) && (enb_int == 1)) begin - case ({wr_mode_a, wr_mode_b, wea_reg, web_int}) - 6'b000011 : begin data_collision_a_b <= 2'b11; display_wa_wb; end - 6'b000111 : begin data_collision_a_b <= 2'b11; display_wa_wb; end - 6'b001011 : begin data_collision_a_b <= 2'b10; display_wa_wb; end -// 6'b010011 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b010111 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b011011 : begin data_collision_a_b <= 2'b00; display_wa_wb; end - 6'b100011 : begin data_collision_a_b <= 2'b01; display_wa_wb; end - 6'b100111 : begin data_collision_a_b <= 2'b01; display_wa_wb; end - 6'b101011 : begin display_wa_wb; end - 6'b000001 : begin data_collision_a_b <= 2'b10; display_ra_wb; end -// 6'b000101 : begin data_collision_a_b <= 2'b00; display_ra_wb; end - 6'b001001 : begin data_collision_a_b <= 2'b10; display_ra_wb; end - 6'b010001 : begin data_collision_a_b <= 2'b10; display_ra_wb; end -// 6'b010101 : begin data_collision_a_b <= 2'b00; display_ra_wb; end - 6'b011001 : begin data_collision_a_b <= 2'b10; display_ra_wb; end - 6'b100001 : begin data_collision_a_b <= 2'b10; display_ra_wb; end -// 6'b100101 : begin data_collision_a_b <= 2'b00; display_ra_wb; end - 6'b101001 : begin data_collision_a_b <= 2'b10; display_ra_wb; end - 6'b000010 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - 6'b000110 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - 6'b001010 : begin data_collision_a_b <= 2'b01; display_wa_rb; end -// 6'b010010 : begin data_collision_a_b <= 2'b00; display_wa_rb; end -// 6'b010110 : begin data_collision_a_b <= 2'b00; display_wa_rb; end -// 6'b011010 : begin data_collision_a_b <= 2'b00; display_wa_rb; end - 6'b100010 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - 6'b100110 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - 6'b101010 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - endcase - end - end - setup_all_a_b <= 0; - end - - - always @(posedge setup_all_b_a) begin - if (data_addra_int[14:5] == data_addrb_reg[14:5]) begin - if ((ena_int == 1) && (enb_reg == 1)) begin - case ({wr_mode_a, wr_mode_b, wea_int, web_reg}) - 6'b000011 : begin data_collision_b_a <= 2'b11; display_wa_wb; end -// 6'b000111 : begin data_collision_b_a <= 2'b00; display_wa_wb; end - 6'b001011 : begin data_collision_b_a <= 2'b10; display_wa_wb; end - 6'b010011 : begin data_collision_b_a <= 2'b11; display_wa_wb; end -// 6'b010111 : begin data_collision_b_a <= 2'b00; display_wa_wb; end - 6'b011011 : begin data_collision_b_a <= 2'b10; display_wa_wb; end - 6'b100011 : begin data_collision_b_a <= 2'b01; display_wa_wb; end - 6'b100111 : begin data_collision_b_a <= 2'b01; display_wa_wb; end - 6'b101011 : begin display_wa_wb; end - 6'b000001 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b000101 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b001001 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b010001 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b010101 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b011001 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b100001 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b100101 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b101001 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b000010 : begin data_collision_b_a <= 2'b01; display_wa_rb; end - 6'b000110 : begin data_collision_b_a <= 2'b01; display_wa_rb; end - 6'b001010 : begin data_collision_b_a <= 2'b01; display_wa_rb; end -// 6'b010010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b010110 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b011010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end - 6'b100010 : begin data_collision_b_a <= 2'b01; display_wa_rb; end - 6'b100110 : begin data_collision_b_a <= 2'b01; display_wa_rb; end - 6'b101010 : begin data_collision_b_a <= 2'b01; display_wa_rb; end - endcase - end - end - setup_all_b_a <= 0; - end - - - always @(posedge setup_zero) begin - if (data_addra_int[14:5] == data_addrb_int[14:5]) begin - if ((ena_int == 1) && (enb_int == 1)) begin - case ({wr_mode_a, wr_mode_b, wea_int, web_int}) - 6'b000011 : begin data_collision <= 2'b11; display_wa_wb; end - 6'b000111 : begin data_collision <= 2'b11; display_wa_wb; end - 6'b001011 : begin data_collision <= 2'b10; display_wa_wb; end - 6'b010011 : begin data_collision <= 2'b11; display_wa_wb; end - 6'b010111 : begin data_collision <= 2'b11; display_wa_wb; end - 6'b011011 : begin data_collision <= 2'b10; display_wa_wb; end - 6'b100011 : begin data_collision <= 2'b01; display_wa_wb; end - 6'b100111 : begin data_collision <= 2'b01; display_wa_wb; end - 6'b101011 : begin display_wa_wb; end - 6'b000001 : begin data_collision <= 2'b10; display_ra_wb; end -// 6'b000101 : begin data_collision <= 2'b00; display_ra_wb; end - 6'b001001 : begin data_collision <= 2'b10; display_ra_wb; end - 6'b010001 : begin data_collision <= 2'b10; display_ra_wb; end -// 6'b010101 : begin data_collision <= 2'b00; display_ra_wb; end - 6'b011001 : begin data_collision <= 2'b10; display_ra_wb; end - 6'b100001 : begin data_collision <= 2'b10; display_ra_wb; end -// 6'b100101 : begin data_collision <= 2'b00; display_ra_wb; end - 6'b101001 : begin data_collision <= 2'b10; display_ra_wb; end - 6'b000010 : begin data_collision <= 2'b01; display_wa_rb; end - 6'b000110 : begin data_collision <= 2'b01; display_wa_rb; end - 6'b001010 : begin data_collision <= 2'b01; display_wa_rb; end -// 6'b010010 : begin data_collision <= 2'b00; display_wa_rb; end -// 6'b010110 : begin data_collision <= 2'b00; display_wa_rb; end -// 6'b011010 : begin data_collision <= 2'b00; display_wa_rb; end - 6'b100010 : begin data_collision <= 2'b01; display_wa_rb; end - 6'b100110 : begin data_collision <= 2'b01; display_wa_rb; end - 6'b101010 : begin data_collision <= 2'b01; display_wa_rb; end - endcase - end - end - setup_zero <= 0; - end - - task display_ra_wb; - begin - if (display_flag) - $display("Memory Collision Error on RAMB16_S36_S36:%m at simulation time %.3f ns\nA read was performed on address %h (hex) of Port A while a write was requested to the same address on Port B. The write will be successful however the read value on Port A is unknown until the next CLKA cycle.", $time/1000.0, addra_int); - end - endtask - - task display_wa_rb; - begin - if (display_flag) - $display("Memory Collision Error on RAMB16_S36_S36:%m at simulation time %.3f ns\nA read was performed on address %h (hex) of Port B while a write was requested to the same address on Port A. The write will be successful however the read value on Port B is unknown until the next CLKB cycle.", $time/1000.0, addrb_int); - end - endtask - - task display_wa_wb; - begin - if (display_flag) - $display("Memory Collision Error on RAMB16_S36_S36:%m at simulation time %.3f ns\nA write was requested to the same address simultaneously at both Port A and Port B of the RAM. The contents written to the RAM at address location %h (hex) of Port A and address location %h (hex) of Port B are unknown.", $time/1000.0, addra_int, addrb_int); - end - endtask - - - always @(posedge setup_rf_a_b) begin - if (data_addra_reg[14:5] == data_addrb_int[14:5]) begin - if ((ena_reg == 1) && (enb_int == 1)) begin - case ({wr_mode_a, wr_mode_b, wea_reg, web_int}) -// 6'b000011 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b000111 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b001011 : begin data_collision_a_b <= 2'b00; display_wa_wb; end - 6'b010011 : begin data_collision_a_b <= 2'b11; display_wa_wb; end - 6'b010111 : begin data_collision_a_b <= 2'b11; display_wa_wb; end - 6'b011011 : begin data_collision_a_b <= 2'b10; display_wa_wb; end -// 6'b100011 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b100111 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b101011 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b000001 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b000101 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b001001 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b010001 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b010101 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b011001 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b100001 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b100101 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b101001 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b000010 : begin data_collision_a_b <= 2'b00; display_wa_rb; end -// 6'b000110 : begin data_collision_a_b <= 2'b00; display_wa_rb; end -// 6'b001010 : begin data_collision_a_b <= 2'b00; display_wa_rb; end - 6'b010010 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - 6'b010110 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - 6'b011010 : begin data_collision_a_b <= 2'b01; display_wa_rb; end -// 6'b100010 : begin data_collision_a_b <= 2'b00; display_wa_rb; end -// 6'b100110 : begin data_collision_a_b <= 2'b00; display_wa_rb; end -// 6'b101010 : begin data_collision_a_b <= 2'b00; display_wa_rb; end - endcase - end - end - setup_rf_a_b <= 0; - end - - - always @(posedge setup_rf_b_a) begin - if (data_addra_int[14:5] == data_addrb_reg[14:5]) begin - if ((ena_int == 1) && (enb_reg == 1)) begin - case ({wr_mode_a, wr_mode_b, wea_int, web_reg}) -// 6'b000011 : begin data_collision_b_a <= 2'b00; display_wa_wb; end - 6'b000111 : begin data_collision_b_a <= 2'b11; display_wa_wb; end -// 6'b001011 : begin data_collision_b_a <= 2'b00; display_wa_wb; end -// 6'b010011 : begin data_collision_b_a <= 2'b00; display_wa_wb; end - 6'b010111 : begin data_collision_b_a <= 2'b11; display_wa_wb; end -// 6'b011011 : begin data_collision_b_a <= 2'b00; display_wa_wb; end -// 6'b100011 : begin data_collision_b_a <= 2'b00; display_wa_wb; end - 6'b100111 : begin data_collision_b_a <= 2'b01; display_wa_wb; end -// 6'b101011 : begin data_collision_b_a <= 2'b00; display_wa_wb; end -// 6'b000001 : begin data_collision_b_a <= 2'b00; display_ra_wb; end - 6'b000101 : begin data_collision_b_a <= 2'b10; display_ra_wb; end -// 6'b001001 : begin data_collision_b_a <= 2'b00; display_ra_wb; end -// 6'b010001 : begin data_collision_b_a <= 2'b00; display_ra_wb; end - 6'b010101 : begin data_collision_b_a <= 2'b10; display_ra_wb; end -// 6'b011001 : begin data_collision_b_a <= 2'b00; display_ra_wb; end -// 6'b100001 : begin data_collision_b_a <= 2'b00; display_ra_wb; end - 6'b100101 : begin data_collision_b_a <= 2'b10; display_ra_wb; end -// 6'b101001 : begin data_collision_b_a <= 2'b00; display_ra_wb; end -// 6'b000010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b000110 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b001010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b010010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b010110 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b011010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b100010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b100110 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b101010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end - endcase - end - end - setup_rf_b_a <= 0; - end - - - always @(posedge clka_int) begin - addra_reg <= addra_int; - ena_reg <= ena_int; - ssra_reg <= ssra_int; - wea_reg <= wea_int; - end - - always @(posedge clkb_int) begin - addrb_reg <= addrb_int; - enb_reg <= enb_int; - ssrb_reg <= ssrb_int; - web_reg <= web_int; - end - - // Data - always @(posedge memory_collision) begin - for (dmi = 0; dmi < 32; dmi = dmi + 1) begin - mem[data_addra_int + dmi] <= 1'bX; - end - memory_collision <= 0; - end - - always @(posedge memory_collision_a_b) begin - for (dmi = 0; dmi < 32; dmi = dmi + 1) begin - mem[data_addra_reg + dmi] <= 1'bX; - end - memory_collision_a_b <= 0; - end - - always @(posedge memory_collision_b_a) begin - for (dmi = 0; dmi < 32; dmi = dmi + 1) begin - mem[data_addra_int + dmi] <= 1'bX; - end - memory_collision_b_a <= 0; - end - - always @(posedge data_collision[1]) begin - if (ssra_int == 0) begin - doa_out <= 32'bX; - end - data_collision[1] <= 0; - end - - always @(posedge data_collision[0]) begin - if (ssrb_int == 0) begin - dob_out <= 32'bX; - end - data_collision[0] <= 0; - end - - always @(posedge data_collision_a_b[1]) begin - if (ssra_reg == 0) begin - doa_out <= 32'bX; - end - data_collision_a_b[1] <= 0; - end - - always @(posedge data_collision_a_b[0]) begin - if (ssrb_int == 0) begin - dob_out <= 32'bX; - end - data_collision_a_b[0] <= 0; - end - - always @(posedge data_collision_b_a[1]) begin - if (ssra_int == 0) begin - doa_out <= 32'bX; - end - data_collision_b_a[1] <= 0; - end - - always @(posedge data_collision_b_a[0]) begin - if (ssrb_reg == 0) begin - dob_out <= 32'bX; - end - data_collision_b_a[0] <= 0; - end - - - // Parity - always @(posedge memory_collision) begin - for (pmi = 0; pmi < 4; pmi = pmi + 1) begin - mem[parity_addra_int + pmi] <= 1'bX; - end - end - - always @(posedge memory_collision_a_b) begin - for (pmi = 0; pmi < 4; pmi = pmi + 1) begin - mem[parity_addra_reg + pmi] <= 1'bX; - end - end - - always @(posedge memory_collision_b_a) begin - for (pmi = 0; pmi < 4; pmi = pmi + 1) begin - mem[parity_addra_int + pmi] <= 1'bX; - end - end - - always @(posedge data_collision[1]) begin - if (ssra_int == 0) begin - dopa_out <= 4'bX; - end - end - - always @(posedge data_collision[0]) begin - if (ssrb_int == 0) begin - dopb_out <= 4'bX; - end - end - - always @(posedge data_collision_a_b[1]) begin - if (ssra_reg == 0) begin - dopa_out <= 4'bX; - end - end - - always @(posedge data_collision_a_b[0]) begin - if (ssrb_int == 0) begin - dopb_out <= 4'bX; - end - end - - always @(posedge data_collision_b_a[1]) begin - if (ssra_int == 0) begin - dopa_out <= 4'bX; - end - end - - always @(posedge data_collision_b_a[0]) begin - if (ssrb_reg == 0) begin - dopb_out <= 4'bX; - end - end - - - initial begin - case (WRITE_MODE_A) - "WRITE_FIRST" : wr_mode_a <= 2'b00; - "READ_FIRST" : wr_mode_a <= 2'b01; - "NO_CHANGE" : wr_mode_a <= 2'b10; - default : begin - $display("Attribute Syntax Error : The Attribute WRITE_MODE_A on RAMB16_S36_S36 instance %m is set to %s. Legal values for this attribute are WRITE_FIRST, READ_FIRST or NO_CHANGE.", WRITE_MODE_A); - $finish; - end - endcase - end - - initial begin - case (WRITE_MODE_B) - "WRITE_FIRST" : wr_mode_b <= 2'b00; - "READ_FIRST" : wr_mode_b <= 2'b01; - "NO_CHANGE" : wr_mode_b <= 2'b10; - default : begin - $display("Attribute Syntax Error : The Attribute WRITE_MODE_B on RAMB16_S36_S36 instance %m is set to %s. Legal values for this attribute are WRITE_FIRST, READ_FIRST or NO_CHANGE.", WRITE_MODE_B); - $finish; - end - endcase - end - - // Port A - always @(posedge clka_int) begin - if (ena_int == 1'b1) begin - if (ssra_int == 1'b1) begin - doa_out[0] <= SRVAL_A[0]; - doa_out[1] <= SRVAL_A[1]; - doa_out[2] <= SRVAL_A[2]; - doa_out[3] <= SRVAL_A[3]; - doa_out[4] <= SRVAL_A[4]; - doa_out[5] <= SRVAL_A[5]; - doa_out[6] <= SRVAL_A[6]; - doa_out[7] <= SRVAL_A[7]; - doa_out[8] <= SRVAL_A[8]; - doa_out[9] <= SRVAL_A[9]; - doa_out[10] <= SRVAL_A[10]; - doa_out[11] <= SRVAL_A[11]; - doa_out[12] <= SRVAL_A[12]; - doa_out[13] <= SRVAL_A[13]; - doa_out[14] <= SRVAL_A[14]; - doa_out[15] <= SRVAL_A[15]; - doa_out[16] <= SRVAL_A[16]; - doa_out[17] <= SRVAL_A[17]; - doa_out[18] <= SRVAL_A[18]; - doa_out[19] <= SRVAL_A[19]; - doa_out[20] <= SRVAL_A[20]; - doa_out[21] <= SRVAL_A[21]; - doa_out[22] <= SRVAL_A[22]; - doa_out[23] <= SRVAL_A[23]; - doa_out[24] <= SRVAL_A[24]; - doa_out[25] <= SRVAL_A[25]; - doa_out[26] <= SRVAL_A[26]; - doa_out[27] <= SRVAL_A[27]; - doa_out[28] <= SRVAL_A[28]; - doa_out[29] <= SRVAL_A[29]; - doa_out[30] <= SRVAL_A[30]; - doa_out[31] <= SRVAL_A[31]; - dopa_out[0] <= SRVAL_A[32]; - dopa_out[1] <= SRVAL_A[33]; - dopa_out[2] <= SRVAL_A[34]; - dopa_out[3] <= SRVAL_A[35]; - end - else begin - if (wea_int == 1'b1) begin - if (wr_mode_a == 2'b00) begin - doa_out <= dia_int; - dopa_out <= dipa_int; - end - else if (wr_mode_a == 2'b01) begin - doa_out[0] <= mem[data_addra_int + 0]; - doa_out[1] <= mem[data_addra_int + 1]; - doa_out[2] <= mem[data_addra_int + 2]; - doa_out[3] <= mem[data_addra_int + 3]; - doa_out[4] <= mem[data_addra_int + 4]; - doa_out[5] <= mem[data_addra_int + 5]; - doa_out[6] <= mem[data_addra_int + 6]; - doa_out[7] <= mem[data_addra_int + 7]; - doa_out[8] <= mem[data_addra_int + 8]; - doa_out[9] <= mem[data_addra_int + 9]; - doa_out[10] <= mem[data_addra_int + 10]; - doa_out[11] <= mem[data_addra_int + 11]; - doa_out[12] <= mem[data_addra_int + 12]; - doa_out[13] <= mem[data_addra_int + 13]; - doa_out[14] <= mem[data_addra_int + 14]; - doa_out[15] <= mem[data_addra_int + 15]; - doa_out[16] <= mem[data_addra_int + 16]; - doa_out[17] <= mem[data_addra_int + 17]; - doa_out[18] <= mem[data_addra_int + 18]; - doa_out[19] <= mem[data_addra_int + 19]; - doa_out[20] <= mem[data_addra_int + 20]; - doa_out[21] <= mem[data_addra_int + 21]; - doa_out[22] <= mem[data_addra_int + 22]; - doa_out[23] <= mem[data_addra_int + 23]; - doa_out[24] <= mem[data_addra_int + 24]; - doa_out[25] <= mem[data_addra_int + 25]; - doa_out[26] <= mem[data_addra_int + 26]; - doa_out[27] <= mem[data_addra_int + 27]; - doa_out[28] <= mem[data_addra_int + 28]; - doa_out[29] <= mem[data_addra_int + 29]; - doa_out[30] <= mem[data_addra_int + 30]; - doa_out[31] <= mem[data_addra_int + 31]; - dopa_out[0] <= mem[parity_addra_int + 0]; - dopa_out[1] <= mem[parity_addra_int + 1]; - dopa_out[2] <= mem[parity_addra_int + 2]; - dopa_out[3] <= mem[parity_addra_int + 3]; - end - end - else begin - doa_out[0] <= mem[data_addra_int + 0]; - doa_out[1] <= mem[data_addra_int + 1]; - doa_out[2] <= mem[data_addra_int + 2]; - doa_out[3] <= mem[data_addra_int + 3]; - doa_out[4] <= mem[data_addra_int + 4]; - doa_out[5] <= mem[data_addra_int + 5]; - doa_out[6] <= mem[data_addra_int + 6]; - doa_out[7] <= mem[data_addra_int + 7]; - doa_out[8] <= mem[data_addra_int + 8]; - doa_out[9] <= mem[data_addra_int + 9]; - doa_out[10] <= mem[data_addra_int + 10]; - doa_out[11] <= mem[data_addra_int + 11]; - doa_out[12] <= mem[data_addra_int + 12]; - doa_out[13] <= mem[data_addra_int + 13]; - doa_out[14] <= mem[data_addra_int + 14]; - doa_out[15] <= mem[data_addra_int + 15]; - doa_out[16] <= mem[data_addra_int + 16]; - doa_out[17] <= mem[data_addra_int + 17]; - doa_out[18] <= mem[data_addra_int + 18]; - doa_out[19] <= mem[data_addra_int + 19]; - doa_out[20] <= mem[data_addra_int + 20]; - doa_out[21] <= mem[data_addra_int + 21]; - doa_out[22] <= mem[data_addra_int + 22]; - doa_out[23] <= mem[data_addra_int + 23]; - doa_out[24] <= mem[data_addra_int + 24]; - doa_out[25] <= mem[data_addra_int + 25]; - doa_out[26] <= mem[data_addra_int + 26]; - doa_out[27] <= mem[data_addra_int + 27]; - doa_out[28] <= mem[data_addra_int + 28]; - doa_out[29] <= mem[data_addra_int + 29]; - doa_out[30] <= mem[data_addra_int + 30]; - doa_out[31] <= mem[data_addra_int + 31]; - dopa_out[0] <= mem[parity_addra_int + 0]; - dopa_out[1] <= mem[parity_addra_int + 1]; - dopa_out[2] <= mem[parity_addra_int + 2]; - dopa_out[3] <= mem[parity_addra_int + 3]; - end - end - end - end - - always @(posedge clka_int) begin - if (ena_int == 1'b1 && wea_int == 1'b1) begin - mem[data_addra_int + 0] <= dia_int[0]; - mem[data_addra_int + 1] <= dia_int[1]; - mem[data_addra_int + 2] <= dia_int[2]; - mem[data_addra_int + 3] <= dia_int[3]; - mem[data_addra_int + 4] <= dia_int[4]; - mem[data_addra_int + 5] <= dia_int[5]; - mem[data_addra_int + 6] <= dia_int[6]; - mem[data_addra_int + 7] <= dia_int[7]; - mem[data_addra_int + 8] <= dia_int[8]; - mem[data_addra_int + 9] <= dia_int[9]; - mem[data_addra_int + 10] <= dia_int[10]; - mem[data_addra_int + 11] <= dia_int[11]; - mem[data_addra_int + 12] <= dia_int[12]; - mem[data_addra_int + 13] <= dia_int[13]; - mem[data_addra_int + 14] <= dia_int[14]; - mem[data_addra_int + 15] <= dia_int[15]; - mem[data_addra_int + 16] <= dia_int[16]; - mem[data_addra_int + 17] <= dia_int[17]; - mem[data_addra_int + 18] <= dia_int[18]; - mem[data_addra_int + 19] <= dia_int[19]; - mem[data_addra_int + 20] <= dia_int[20]; - mem[data_addra_int + 21] <= dia_int[21]; - mem[data_addra_int + 22] <= dia_int[22]; - mem[data_addra_int + 23] <= dia_int[23]; - mem[data_addra_int + 24] <= dia_int[24]; - mem[data_addra_int + 25] <= dia_int[25]; - mem[data_addra_int + 26] <= dia_int[26]; - mem[data_addra_int + 27] <= dia_int[27]; - mem[data_addra_int + 28] <= dia_int[28]; - mem[data_addra_int + 29] <= dia_int[29]; - mem[data_addra_int + 30] <= dia_int[30]; - mem[data_addra_int + 31] <= dia_int[31]; - mem[parity_addra_int + 0] <= dipa_int[0]; - mem[parity_addra_int + 1] <= dipa_int[1]; - mem[parity_addra_int + 2] <= dipa_int[2]; - mem[parity_addra_int + 3] <= dipa_int[3]; - end - end - - // Port B - always @(posedge clkb_int) begin - if (enb_int == 1'b1) begin - if (ssrb_int == 1'b1) begin - dob_out[0] <= SRVAL_B[0]; - dob_out[1] <= SRVAL_B[1]; - dob_out[2] <= SRVAL_B[2]; - dob_out[3] <= SRVAL_B[3]; - dob_out[4] <= SRVAL_B[4]; - dob_out[5] <= SRVAL_B[5]; - dob_out[6] <= SRVAL_B[6]; - dob_out[7] <= SRVAL_B[7]; - dob_out[8] <= SRVAL_B[8]; - dob_out[9] <= SRVAL_B[9]; - dob_out[10] <= SRVAL_B[10]; - dob_out[11] <= SRVAL_B[11]; - dob_out[12] <= SRVAL_B[12]; - dob_out[13] <= SRVAL_B[13]; - dob_out[14] <= SRVAL_B[14]; - dob_out[15] <= SRVAL_B[15]; - dob_out[16] <= SRVAL_B[16]; - dob_out[17] <= SRVAL_B[17]; - dob_out[18] <= SRVAL_B[18]; - dob_out[19] <= SRVAL_B[19]; - dob_out[20] <= SRVAL_B[20]; - dob_out[21] <= SRVAL_B[21]; - dob_out[22] <= SRVAL_B[22]; - dob_out[23] <= SRVAL_B[23]; - dob_out[24] <= SRVAL_B[24]; - dob_out[25] <= SRVAL_B[25]; - dob_out[26] <= SRVAL_B[26]; - dob_out[27] <= SRVAL_B[27]; - dob_out[28] <= SRVAL_B[28]; - dob_out[29] <= SRVAL_B[29]; - dob_out[30] <= SRVAL_B[30]; - dob_out[31] <= SRVAL_B[31]; - dopb_out[0] <= SRVAL_B[32]; - dopb_out[1] <= SRVAL_B[33]; - dopb_out[2] <= SRVAL_B[34]; - dopb_out[3] <= SRVAL_B[35]; - end - else begin - if (web_int == 1'b1) begin - if (wr_mode_b == 2'b00) begin - dob_out <= dib_int; - dopb_out <= dipb_int; - end - else if (wr_mode_b == 2'b01) begin - dob_out[0] <= mem[data_addrb_int + 0]; - dob_out[1] <= mem[data_addrb_int + 1]; - dob_out[2] <= mem[data_addrb_int + 2]; - dob_out[3] <= mem[data_addrb_int + 3]; - dob_out[4] <= mem[data_addrb_int + 4]; - dob_out[5] <= mem[data_addrb_int + 5]; - dob_out[6] <= mem[data_addrb_int + 6]; - dob_out[7] <= mem[data_addrb_int + 7]; - dob_out[8] <= mem[data_addrb_int + 8]; - dob_out[9] <= mem[data_addrb_int + 9]; - dob_out[10] <= mem[data_addrb_int + 10]; - dob_out[11] <= mem[data_addrb_int + 11]; - dob_out[12] <= mem[data_addrb_int + 12]; - dob_out[13] <= mem[data_addrb_int + 13]; - dob_out[14] <= mem[data_addrb_int + 14]; - dob_out[15] <= mem[data_addrb_int + 15]; - dob_out[16] <= mem[data_addrb_int + 16]; - dob_out[17] <= mem[data_addrb_int + 17]; - dob_out[18] <= mem[data_addrb_int + 18]; - dob_out[19] <= mem[data_addrb_int + 19]; - dob_out[20] <= mem[data_addrb_int + 20]; - dob_out[21] <= mem[data_addrb_int + 21]; - dob_out[22] <= mem[data_addrb_int + 22]; - dob_out[23] <= mem[data_addrb_int + 23]; - dob_out[24] <= mem[data_addrb_int + 24]; - dob_out[25] <= mem[data_addrb_int + 25]; - dob_out[26] <= mem[data_addrb_int + 26]; - dob_out[27] <= mem[data_addrb_int + 27]; - dob_out[28] <= mem[data_addrb_int + 28]; - dob_out[29] <= mem[data_addrb_int + 29]; - dob_out[30] <= mem[data_addrb_int + 30]; - dob_out[31] <= mem[data_addrb_int + 31]; - dopb_out[0] <= mem[parity_addrb_int + 0]; - dopb_out[1] <= mem[parity_addrb_int + 1]; - dopb_out[2] <= mem[parity_addrb_int + 2]; - dopb_out[3] <= mem[parity_addrb_int + 3]; - end - end - else begin - dob_out[0] <= mem[data_addrb_int + 0]; - dob_out[1] <= mem[data_addrb_int + 1]; - dob_out[2] <= mem[data_addrb_int + 2]; - dob_out[3] <= mem[data_addrb_int + 3]; - dob_out[4] <= mem[data_addrb_int + 4]; - dob_out[5] <= mem[data_addrb_int + 5]; - dob_out[6] <= mem[data_addrb_int + 6]; - dob_out[7] <= mem[data_addrb_int + 7]; - dob_out[8] <= mem[data_addrb_int + 8]; - dob_out[9] <= mem[data_addrb_int + 9]; - dob_out[10] <= mem[data_addrb_int + 10]; - dob_out[11] <= mem[data_addrb_int + 11]; - dob_out[12] <= mem[data_addrb_int + 12]; - dob_out[13] <= mem[data_addrb_int + 13]; - dob_out[14] <= mem[data_addrb_int + 14]; - dob_out[15] <= mem[data_addrb_int + 15]; - dob_out[16] <= mem[data_addrb_int + 16]; - dob_out[17] <= mem[data_addrb_int + 17]; - dob_out[18] <= mem[data_addrb_int + 18]; - dob_out[19] <= mem[data_addrb_int + 19]; - dob_out[20] <= mem[data_addrb_int + 20]; - dob_out[21] <= mem[data_addrb_int + 21]; - dob_out[22] <= mem[data_addrb_int + 22]; - dob_out[23] <= mem[data_addrb_int + 23]; - dob_out[24] <= mem[data_addrb_int + 24]; - dob_out[25] <= mem[data_addrb_int + 25]; - dob_out[26] <= mem[data_addrb_int + 26]; - dob_out[27] <= mem[data_addrb_int + 27]; - dob_out[28] <= mem[data_addrb_int + 28]; - dob_out[29] <= mem[data_addrb_int + 29]; - dob_out[30] <= mem[data_addrb_int + 30]; - dob_out[31] <= mem[data_addrb_int + 31]; - dopb_out[0] <= mem[parity_addrb_int + 0]; - dopb_out[1] <= mem[parity_addrb_int + 1]; - dopb_out[2] <= mem[parity_addrb_int + 2]; - dopb_out[3] <= mem[parity_addrb_int + 3]; - end - end - end - end - - always @(posedge clkb_int) begin - if (enb_int == 1'b1 && web_int == 1'b1) begin - mem[data_addrb_int + 0] <= dib_int[0]; - mem[data_addrb_int + 1] <= dib_int[1]; - mem[data_addrb_int + 2] <= dib_int[2]; - mem[data_addrb_int + 3] <= dib_int[3]; - mem[data_addrb_int + 4] <= dib_int[4]; - mem[data_addrb_int + 5] <= dib_int[5]; - mem[data_addrb_int + 6] <= dib_int[6]; - mem[data_addrb_int + 7] <= dib_int[7]; - mem[data_addrb_int + 8] <= dib_int[8]; - mem[data_addrb_int + 9] <= dib_int[9]; - mem[data_addrb_int + 10] <= dib_int[10]; - mem[data_addrb_int + 11] <= dib_int[11]; - mem[data_addrb_int + 12] <= dib_int[12]; - mem[data_addrb_int + 13] <= dib_int[13]; - mem[data_addrb_int + 14] <= dib_int[14]; - mem[data_addrb_int + 15] <= dib_int[15]; - mem[data_addrb_int + 16] <= dib_int[16]; - mem[data_addrb_int + 17] <= dib_int[17]; - mem[data_addrb_int + 18] <= dib_int[18]; - mem[data_addrb_int + 19] <= dib_int[19]; - mem[data_addrb_int + 20] <= dib_int[20]; - mem[data_addrb_int + 21] <= dib_int[21]; - mem[data_addrb_int + 22] <= dib_int[22]; - mem[data_addrb_int + 23] <= dib_int[23]; - mem[data_addrb_int + 24] <= dib_int[24]; - mem[data_addrb_int + 25] <= dib_int[25]; - mem[data_addrb_int + 26] <= dib_int[26]; - mem[data_addrb_int + 27] <= dib_int[27]; - mem[data_addrb_int + 28] <= dib_int[28]; - mem[data_addrb_int + 29] <= dib_int[29]; - mem[data_addrb_int + 30] <= dib_int[30]; - mem[data_addrb_int + 31] <= dib_int[31]; - mem[parity_addrb_int + 0] <= dipb_int[0]; - mem[parity_addrb_int + 1] <= dipb_int[1]; - mem[parity_addrb_int + 2] <= dipb_int[2]; - mem[parity_addrb_int + 3] <= dipb_int[3]; - end - end - - specify - (CLKA *> DOA) = (100, 100); - (CLKA *> DOPA) = (100, 100); - (CLKB *> DOB) = (100, 100); - (CLKB *> DOPB) = (100, 100); - endspecify - -endmodule - -`else - -// $Header: /devl/xcs/repo/env/Databases/CAEInterfaces/verunilibs/data/unisims/RAMB16_S36_S36.v,v 1.9 2005/03/14 22:54:41 wloo Exp $ -/////////////////////////////////////////////////////////////////////////////// -// Copyright (c) 1995/2005 Xilinx, Inc. -// All Right Reserved. -/////////////////////////////////////////////////////////////////////////////// -// ____ ____ -// / /\/ / -// /___/ \ / Vendor : Xilinx -// \ \ \/ Version : 8.1i (I.13) -// \ \ Description : Xilinx Timing Simulation Library Component -// / / 16K-Bit Data and 2K-Bit Parity Dual Port Block RAM -// /___/ /\ Filename : RAMB16_S36_S36.v -// \ \ / \ Timestamp : Thu Mar 10 16:44:01 PST 2005 -// \___\/\___\ -// -// Revision: -// 03/23/04 - Initial version. -// 03/10/05 - Initialized outputs. -// End Revision - -`timescale 1 ps/1 ps - -module RAMB16_S36_S36 (DOA, DOB, DOPA, DOPB, ADDRA, ADDRB, CLKA, CLKB, DIA, DIB, DIPA, DIPB, ENA, ENB, SSRA, SSRB, WEA, WEB); - - parameter INIT_A = 36'h0; - parameter INIT_B = 36'h0; - parameter SRVAL_A = 36'h0; - parameter SRVAL_B = 36'h0; - parameter WRITE_MODE_A = "WRITE_FIRST"; - parameter WRITE_MODE_B = "WRITE_FIRST"; - parameter SIM_COLLISION_CHECK = "ALL"; - localparam SETUP_ALL = 1000; - localparam SETUP_READ_FIRST = 3000; - - parameter INIT_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_04 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_05 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_06 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_07 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_08 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_09 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_0A = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_0B = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_0C = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_0D = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_0E = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_0F = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_10 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_11 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_12 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_13 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_14 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_15 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_16 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_17 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_18 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_19 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_1A = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_1B = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_1C = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_1D = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_1E = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_1F = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_20 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_21 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_22 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_23 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_24 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_25 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_26 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_27 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_28 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_29 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_2A = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_2B = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_2C = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_2D = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_2E = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_2F = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_30 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_31 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_32 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_33 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_34 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_35 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_36 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_37 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_38 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_39 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_3A = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_3B = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_3C = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_3D = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_3E = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INIT_3F = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_04 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_05 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_06 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - parameter INITP_07 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - - output [31:0] DOA; - output [3:0] DOPA; - output [31:0] DOB; - output [3:0] DOPB; - - input [8:0] ADDRA; - input [31:0] DIA; - input [3:0] DIPA; - input ENA, CLKA, WEA, SSRA; - input [8:0] ADDRB; - input [31:0] DIB; - input [3:0] DIPB; - input ENB, CLKB, WEB, SSRB; - - reg [31:0] doa_out = INIT_A[31:0]; - reg [3:0] dopa_out = INIT_A[35:32]; - reg [31:0] dob_out = INIT_B[31:0]; - reg [3:0] dopb_out = INIT_B[35:32]; - - reg [31:0] mem [511:0]; - reg [3:0] memp [511:0]; - - reg [8:0] count, countp; - reg [1:0] wr_mode_a, wr_mode_b; - - reg [5:0] dmi, dbi; - reg [5:0] pmi, pbi; - - wire [8:0] addra_int; - reg [8:0] addra_reg; - wire [31:0] dia_int; - wire [3:0] dipa_int; - wire ena_int, clka_int, wea_int, ssra_int; - reg ena_reg, wea_reg, ssra_reg; - wire [8:0] addrb_int; - reg [8:0] addrb_reg; - wire [31:0] dib_int; - wire [3:0] dipb_int; - wire enb_int, clkb_int, web_int, ssrb_int; - reg display_flag, output_flag; - reg enb_reg, web_reg, ssrb_reg; - - time time_clka, time_clkb; - time time_clka_clkb; - time time_clkb_clka; - - reg setup_all_a_b; - reg setup_all_b_a; - reg setup_zero; - reg setup_rf_a_b; - reg setup_rf_b_a; - reg [1:0] data_collision, data_collision_a_b, data_collision_b_a; - reg memory_collision, memory_collision_a_b, memory_collision_b_a; - reg change_clka; - reg change_clkb; - - wire [14:0] data_addra_int; - wire [14:0] data_addra_reg; - wire [14:0] data_addrb_int; - wire [14:0] data_addrb_reg; - - wire dia_enable = ena_int && wea_int; - wire dib_enable = enb_int && web_int; - - tri0 GSR = glbl.GSR; - wire gsr_int; - - buf b_gsr (gsr_int, GSR); - - buf b_doa [31:0] (DOA, doa_out); - buf b_dopa [3:0] (DOPA, dopa_out); - buf b_addra [8:0] (addra_int, ADDRA); - buf b_dia [31:0] (dia_int, DIA); - buf b_dipa [3:0] (dipa_int, DIPA); - buf b_ena (ena_int, ENA); - buf b_clka (clka_int, CLKA); - buf b_ssra (ssra_int, SSRA); - buf b_wea (wea_int, WEA); - - buf b_dob [31:0] (DOB, dob_out); - buf b_dopb [3:0] (DOPB, dopb_out); - buf b_addrb [8:0] (addrb_int, ADDRB); - buf b_dib [31:0] (dib_int, DIB); - buf b_dipb [3:0] (dipb_int, DIPB); - buf b_enb (enb_int, ENB); - buf b_clkb (clkb_int, CLKB); - buf b_ssrb (ssrb_int, SSRB); - buf b_web (web_int, WEB); - - - always @(gsr_int) - if (gsr_int) begin - assign {dopa_out, doa_out} = INIT_A; - assign {dopb_out, dob_out} = INIT_B; - end - else begin - deassign doa_out; - deassign dopa_out; - deassign dob_out; - deassign dopb_out; - end - - initial begin : initialize_mems - -`ifdef UNDEFINED - for (count = 0; count < 8; count = count + 1) begin - mem[count] = INIT_00[(count * 32) +: 32]; - mem[8 * 1 + count] = INIT_01[(count * 32) +: 32]; - mem[8 * 2 + count] = INIT_02[(count * 32) +: 32]; - mem[8 * 3 + count] = INIT_03[(count * 32) +: 32]; - mem[8 * 4 + count] = INIT_04[(count * 32) +: 32]; - mem[8 * 5 + count] = INIT_05[(count * 32) +: 32]; - mem[8 * 6 + count] = INIT_06[(count * 32) +: 32]; - mem[8 * 7 + count] = INIT_07[(count * 32) +: 32]; - mem[8 * 8 + count] = INIT_08[(count * 32) +: 32]; - mem[8 * 9 + count] = INIT_09[(count * 32) +: 32]; - mem[8 * 10 + count] = INIT_0A[(count * 32) +: 32]; - mem[8 * 11 + count] = INIT_0B[(count * 32) +: 32]; - mem[8 * 12 + count] = INIT_0C[(count * 32) +: 32]; - mem[8 * 13 + count] = INIT_0D[(count * 32) +: 32]; - mem[8 * 14 + count] = INIT_0E[(count * 32) +: 32]; - mem[8 * 15 + count] = INIT_0F[(count * 32) +: 32]; - mem[8 * 16 + count] = INIT_10[(count * 32) +: 32]; - mem[8 * 17 + count] = INIT_11[(count * 32) +: 32]; - mem[8 * 18 + count] = INIT_12[(count * 32) +: 32]; - mem[8 * 19 + count] = INIT_13[(count * 32) +: 32]; - mem[8 * 20 + count] = INIT_14[(count * 32) +: 32]; - mem[8 * 21 + count] = INIT_15[(count * 32) +: 32]; - mem[8 * 22 + count] = INIT_16[(count * 32) +: 32]; - mem[8 * 23 + count] = INIT_17[(count * 32) +: 32]; - mem[8 * 24 + count] = INIT_18[(count * 32) +: 32]; - mem[8 * 25 + count] = INIT_19[(count * 32) +: 32]; - mem[8 * 26 + count] = INIT_1A[(count * 32) +: 32]; - mem[8 * 27 + count] = INIT_1B[(count * 32) +: 32]; - mem[8 * 28 + count] = INIT_1C[(count * 32) +: 32]; - mem[8 * 29 + count] = INIT_1D[(count * 32) +: 32]; - mem[8 * 30 + count] = INIT_1E[(count * 32) +: 32]; - mem[8 * 31 + count] = INIT_1F[(count * 32) +: 32]; - mem[8 * 32 + count] = INIT_20[(count * 32) +: 32]; - mem[8 * 33 + count] = INIT_21[(count * 32) +: 32]; - mem[8 * 34 + count] = INIT_22[(count * 32) +: 32]; - mem[8 * 35 + count] = INIT_23[(count * 32) +: 32]; - mem[8 * 36 + count] = INIT_24[(count * 32) +: 32]; - mem[8 * 37 + count] = INIT_25[(count * 32) +: 32]; - mem[8 * 38 + count] = INIT_26[(count * 32) +: 32]; - mem[8 * 39 + count] = INIT_27[(count * 32) +: 32]; - mem[8 * 40 + count] = INIT_28[(count * 32) +: 32]; - mem[8 * 41 + count] = INIT_29[(count * 32) +: 32]; - mem[8 * 42 + count] = INIT_2A[(count * 32) +: 32]; - mem[8 * 43 + count] = INIT_2B[(count * 32) +: 32]; - mem[8 * 44 + count] = INIT_2C[(count * 32) +: 32]; - mem[8 * 45 + count] = INIT_2D[(count * 32) +: 32]; - mem[8 * 46 + count] = INIT_2E[(count * 32) +: 32]; - mem[8 * 47 + count] = INIT_2F[(count * 32) +: 32]; - mem[8 * 48 + count] = INIT_30[(count * 32) +: 32]; - mem[8 * 49 + count] = INIT_31[(count * 32) +: 32]; - mem[8 * 50 + count] = INIT_32[(count * 32) +: 32]; - mem[8 * 51 + count] = INIT_33[(count * 32) +: 32]; - mem[8 * 52 + count] = INIT_34[(count * 32) +: 32]; - mem[8 * 53 + count] = INIT_35[(count * 32) +: 32]; - mem[8 * 54 + count] = INIT_36[(count * 32) +: 32]; - mem[8 * 55 + count] = INIT_37[(count * 32) +: 32]; - mem[8 * 56 + count] = INIT_38[(count * 32) +: 32]; - mem[8 * 57 + count] = INIT_39[(count * 32) +: 32]; - mem[8 * 58 + count] = INIT_3A[(count * 32) +: 32]; - mem[8 * 59 + count] = INIT_3B[(count * 32) +: 32]; - mem[8 * 60 + count] = INIT_3C[(count * 32) +: 32]; - mem[8 * 61 + count] = INIT_3D[(count * 32) +: 32]; - mem[8 * 62 + count] = INIT_3E[(count * 32) +: 32]; - mem[8 * 63 + count] = INIT_3F[(count * 32) +: 32]; - end -`else - integer i; - for (i = 0; i < 512; i = i + 1) - begin - mem[i] = 0; - memp[i] = 0; - end - -`endif - -// initiate parity start -`ifdef UNDEFINED - for (countp = 0; countp < 64; countp = countp + 1) begin - memp[countp] = INITP_00[(countp * 4) +: 4]; - memp[64 * 1 + countp] = INITP_01[(countp * 4) +: 4]; - memp[64 * 2 + countp] = INITP_02[(countp * 4) +: 4]; - memp[64 * 3 + countp] = INITP_03[(countp * 4) +: 4]; - memp[64 * 4 + countp] = INITP_04[(countp * 4) +: 4]; - memp[64 * 5 + countp] = INITP_05[(countp * 4) +: 4]; - memp[64 * 6 + countp] = INITP_06[(countp * 4) +: 4]; - memp[64 * 7 + countp] = INITP_07[(countp * 4) +: 4]; - end -`endif -// initiate parity end - - change_clka <= 0; - change_clkb <= 0; - data_collision <= 0; - data_collision_a_b <= 0; - data_collision_b_a <= 0; - memory_collision <= 0; - memory_collision_a_b <= 0; - memory_collision_b_a <= 0; - setup_all_a_b <= 0; - setup_all_b_a <= 0; - setup_zero <= 0; - setup_rf_a_b <= 0; - setup_rf_b_a <= 0; - end - - assign data_addra_int = addra_int * 32; - assign data_addra_reg = addra_reg * 32; - assign data_addrb_int = addrb_int * 32; - assign data_addrb_reg = addrb_reg * 32; - - - initial begin - - display_flag = 1; - output_flag = 1; - - case (SIM_COLLISION_CHECK) - - "NONE" : begin - output_flag = 0; - display_flag = 0; - end - "WARNING_ONLY" : output_flag = 0; - "GENERATE_ONLY" : display_flag = 0; - "ALL" : ; - - default : begin - $display("Attribute Syntax Error : The Attribute SIM_COLLISION_CHECK on RAMB16_S36_S36 instance %m is set to %s. Legal values for this attribute are ALL, NONE, WARNING_ONLY or GENERATE_ONLY.", SIM_COLLISION_CHECK); - $finish; - end - - endcase // case(SIM_COLLISION_CHECK) - - end // initial begin - - - always @(posedge clka_int) begin - if ((output_flag || display_flag)) begin - time_clka = $time; - #0 time_clkb_clka = time_clka - time_clkb; - change_clka = ~change_clka; - end - end - - always @(posedge clkb_int) begin - if ((output_flag || display_flag)) begin - time_clkb = $time; - #0 time_clka_clkb = time_clkb - time_clka; - change_clkb = ~change_clkb; - end - end - - always @(change_clkb) begin - if ((0 < time_clka_clkb) && (time_clka_clkb < SETUP_ALL)) - setup_all_a_b = 1; - if ((0 < time_clka_clkb) && (time_clka_clkb < SETUP_READ_FIRST)) - setup_rf_a_b = 1; - end - - always @(change_clka) begin - if ((0 < time_clkb_clka) && (time_clkb_clka < SETUP_ALL)) - setup_all_b_a = 1; - if ((0 < time_clkb_clka) && (time_clkb_clka < SETUP_READ_FIRST)) - setup_rf_b_a = 1; - end - - always @(change_clkb or change_clka) begin - if ((time_clkb_clka == 0) && (time_clka_clkb == 0)) - setup_zero = 1; - end - - always @(posedge setup_zero) begin - if ((ena_int == 1) && (wea_int == 1) && - (enb_int == 1) && (web_int == 1) && - (data_addra_int[14:5] == data_addrb_int[14:5])) - memory_collision <= 1; - end - - always @(posedge setup_all_a_b or posedge setup_rf_a_b) begin - if ((ena_reg == 1) && (wea_reg == 1) && - (enb_int == 1) && (web_int == 1) && - (data_addra_reg[14:5] == data_addrb_int[14:5])) - memory_collision_a_b <= 1; - end - - always @(posedge setup_all_b_a or posedge setup_rf_b_a) begin - if ((ena_int == 1) && (wea_int == 1) && - (enb_reg == 1) && (web_reg == 1) && - (data_addra_int[14:5] == data_addrb_reg[14:5])) - memory_collision_b_a <= 1; - end - - always @(posedge setup_all_a_b) begin - if (data_addra_reg[14:5] == data_addrb_int[14:5]) begin - if ((ena_reg == 1) && (enb_int == 1)) begin - case ({wr_mode_a, wr_mode_b, wea_reg, web_int}) - 6'b000011 : begin data_collision_a_b <= 2'b11; display_wa_wb; end - 6'b000111 : begin data_collision_a_b <= 2'b11; display_wa_wb; end - 6'b001011 : begin data_collision_a_b <= 2'b10; display_wa_wb; end -// 6'b010011 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b010111 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b011011 : begin data_collision_a_b <= 2'b00; display_wa_wb; end - 6'b100011 : begin data_collision_a_b <= 2'b01; display_wa_wb; end - 6'b100111 : begin data_collision_a_b <= 2'b01; display_wa_wb; end - 6'b101011 : begin display_wa_wb; end - 6'b000001 : begin data_collision_a_b <= 2'b10; display_ra_wb; end -// 6'b000101 : begin data_collision_a_b <= 2'b00; display_ra_wb; end - 6'b001001 : begin data_collision_a_b <= 2'b10; display_ra_wb; end - 6'b010001 : begin data_collision_a_b <= 2'b10; display_ra_wb; end -// 6'b010101 : begin data_collision_a_b <= 2'b00; display_ra_wb; end - 6'b011001 : begin data_collision_a_b <= 2'b10; display_ra_wb; end - 6'b100001 : begin data_collision_a_b <= 2'b10; display_ra_wb; end -// 6'b100101 : begin data_collision_a_b <= 2'b00; display_ra_wb; end - 6'b101001 : begin data_collision_a_b <= 2'b10; display_ra_wb; end - 6'b000010 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - 6'b000110 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - 6'b001010 : begin data_collision_a_b <= 2'b01; display_wa_rb; end -// 6'b010010 : begin data_collision_a_b <= 2'b00; display_wa_rb; end -// 6'b010110 : begin data_collision_a_b <= 2'b00; display_wa_rb; end -// 6'b011010 : begin data_collision_a_b <= 2'b00; display_wa_rb; end - 6'b100010 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - 6'b100110 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - 6'b101010 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - endcase - end - end - setup_all_a_b <= 0; - end - - - always @(posedge setup_all_b_a) begin - if (data_addra_int[14:5] == data_addrb_reg[14:5]) begin - if ((ena_int == 1) && (enb_reg == 1)) begin - case ({wr_mode_a, wr_mode_b, wea_int, web_reg}) - 6'b000011 : begin data_collision_b_a <= 2'b11; display_wa_wb; end -// 6'b000111 : begin data_collision_b_a <= 2'b00; display_wa_wb; end - 6'b001011 : begin data_collision_b_a <= 2'b10; display_wa_wb; end - 6'b010011 : begin data_collision_b_a <= 2'b11; display_wa_wb; end -// 6'b010111 : begin data_collision_b_a <= 2'b00; display_wa_wb; end - 6'b011011 : begin data_collision_b_a <= 2'b10; display_wa_wb; end - 6'b100011 : begin data_collision_b_a <= 2'b01; display_wa_wb; end - 6'b100111 : begin data_collision_b_a <= 2'b01; display_wa_wb; end - 6'b101011 : begin display_wa_wb; end - 6'b000001 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b000101 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b001001 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b010001 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b010101 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b011001 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b100001 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b100101 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b101001 : begin data_collision_b_a <= 2'b10; display_ra_wb; end - 6'b000010 : begin data_collision_b_a <= 2'b01; display_wa_rb; end - 6'b000110 : begin data_collision_b_a <= 2'b01; display_wa_rb; end - 6'b001010 : begin data_collision_b_a <= 2'b01; display_wa_rb; end -// 6'b010010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b010110 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b011010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end - 6'b100010 : begin data_collision_b_a <= 2'b01; display_wa_rb; end - 6'b100110 : begin data_collision_b_a <= 2'b01; display_wa_rb; end - 6'b101010 : begin data_collision_b_a <= 2'b01; display_wa_rb; end - endcase - end - end - setup_all_b_a <= 0; - end - - - always @(posedge setup_zero) begin - if (data_addra_int[14:5] == data_addrb_int[14:5]) begin - if ((ena_int == 1) && (enb_int == 1)) begin - case ({wr_mode_a, wr_mode_b, wea_int, web_int}) - 6'b000011 : begin data_collision <= 2'b11; display_wa_wb; end - 6'b000111 : begin data_collision <= 2'b11; display_wa_wb; end - 6'b001011 : begin data_collision <= 2'b10; display_wa_wb; end - 6'b010011 : begin data_collision <= 2'b11; display_wa_wb; end - 6'b010111 : begin data_collision <= 2'b11; display_wa_wb; end - 6'b011011 : begin data_collision <= 2'b10; display_wa_wb; end - 6'b100011 : begin data_collision <= 2'b01; display_wa_wb; end - 6'b100111 : begin data_collision <= 2'b01; display_wa_wb; end - 6'b101011 : begin display_wa_wb; end - 6'b000001 : begin data_collision <= 2'b10; display_ra_wb; end -// 6'b000101 : begin data_collision <= 2'b00; display_ra_wb; end - 6'b001001 : begin data_collision <= 2'b10; display_ra_wb; end - 6'b010001 : begin data_collision <= 2'b10; display_ra_wb; end -// 6'b010101 : begin data_collision <= 2'b00; display_ra_wb; end - 6'b011001 : begin data_collision <= 2'b10; display_ra_wb; end - 6'b100001 : begin data_collision <= 2'b10; display_ra_wb; end -// 6'b100101 : begin data_collision <= 2'b00; display_ra_wb; end - 6'b101001 : begin data_collision <= 2'b10; display_ra_wb; end - 6'b000010 : begin data_collision <= 2'b01; display_wa_rb; end - 6'b000110 : begin data_collision <= 2'b01; display_wa_rb; end - 6'b001010 : begin data_collision <= 2'b01; display_wa_rb; end -// 6'b010010 : begin data_collision <= 2'b00; display_wa_rb; end -// 6'b010110 : begin data_collision <= 2'b00; display_wa_rb; end -// 6'b011010 : begin data_collision <= 2'b00; display_wa_rb; end - 6'b100010 : begin data_collision <= 2'b01; display_wa_rb; end - 6'b100110 : begin data_collision <= 2'b01; display_wa_rb; end - 6'b101010 : begin data_collision <= 2'b01; display_wa_rb; end - endcase - end - end - setup_zero <= 0; - end - - task display_ra_wb; - begin - if (display_flag) - $display("Memory Collision Error on RAMB16_S36_S36:%m at simulation time %.3f ns\nA read was performed on address %h (hex) of Port A while a write was requested to the same address on Port B. The write will be successful however the read value on Port A is unknown until the next CLKA cycle.", $time/1000.0, addra_int); - end - endtask - - task display_wa_rb; - begin - if (display_flag) - $display("Memory Collision Error on RAMB16_S36_S36:%m at simulation time %.3f ns\nA read was performed on address %h (hex) of Port B while a write was requested to the same address on Port A. The write will be successful however the read value on Port B is unknown until the next CLKB cycle.", $time/1000.0, addrb_int); - end - endtask - - task display_wa_wb; - begin - if (display_flag) - $display("Memory Collision Error on RAMB16_S36_S36:%m at simulation time %.3f ns\nA write was requested to the same address simultaneously at both Port A and Port B of the RAM. The contents written to the RAM at address location %h (hex) of Port A and address location %h (hex) of Port B are unknown.", $time/1000.0, addra_int, addrb_int); - end - endtask - - - always @(posedge setup_rf_a_b) begin - if (data_addra_reg[14:5] == data_addrb_int[14:5]) begin - if ((ena_reg == 1) && (enb_int == 1)) begin - case ({wr_mode_a, wr_mode_b, wea_reg, web_int}) -// 6'b000011 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b000111 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b001011 : begin data_collision_a_b <= 2'b00; display_wa_wb; end - 6'b010011 : begin data_collision_a_b <= 2'b11; display_wa_wb; end - 6'b010111 : begin data_collision_a_b <= 2'b11; display_wa_wb; end - 6'b011011 : begin data_collision_a_b <= 2'b10; display_wa_wb; end -// 6'b100011 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b100111 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b101011 : begin data_collision_a_b <= 2'b00; display_wa_wb; end -// 6'b000001 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b000101 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b001001 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b010001 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b010101 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b011001 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b100001 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b100101 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b101001 : begin data_collision_a_b <= 2'b00; display_ra_wb; end -// 6'b000010 : begin data_collision_a_b <= 2'b00; display_wa_rb; end -// 6'b000110 : begin data_collision_a_b <= 2'b00; display_wa_rb; end -// 6'b001010 : begin data_collision_a_b <= 2'b00; display_wa_rb; end - 6'b010010 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - 6'b010110 : begin data_collision_a_b <= 2'b01; display_wa_rb; end - 6'b011010 : begin data_collision_a_b <= 2'b01; display_wa_rb; end -// 6'b100010 : begin data_collision_a_b <= 2'b00; display_wa_rb; end -// 6'b100110 : begin data_collision_a_b <= 2'b00; display_wa_rb; end -// 6'b101010 : begin data_collision_a_b <= 2'b00; display_wa_rb; end - endcase - end - end - setup_rf_a_b <= 0; - end - - - always @(posedge setup_rf_b_a) begin - if (data_addra_int[14:5] == data_addrb_reg[14:5]) begin - if ((ena_int == 1) && (enb_reg == 1)) begin - case ({wr_mode_a, wr_mode_b, wea_int, web_reg}) -// 6'b000011 : begin data_collision_b_a <= 2'b00; display_wa_wb; end - 6'b000111 : begin data_collision_b_a <= 2'b11; display_wa_wb; end -// 6'b001011 : begin data_collision_b_a <= 2'b00; display_wa_wb; end -// 6'b010011 : begin data_collision_b_a <= 2'b00; display_wa_wb; end - 6'b010111 : begin data_collision_b_a <= 2'b11; display_wa_wb; end -// 6'b011011 : begin data_collision_b_a <= 2'b00; display_wa_wb; end -// 6'b100011 : begin data_collision_b_a <= 2'b00; display_wa_wb; end - 6'b100111 : begin data_collision_b_a <= 2'b01; display_wa_wb; end -// 6'b101011 : begin data_collision_b_a <= 2'b00; display_wa_wb; end -// 6'b000001 : begin data_collision_b_a <= 2'b00; display_ra_wb; end - 6'b000101 : begin data_collision_b_a <= 2'b10; display_ra_wb; end -// 6'b001001 : begin data_collision_b_a <= 2'b00; display_ra_wb; end -// 6'b010001 : begin data_collision_b_a <= 2'b00; display_ra_wb; end - 6'b010101 : begin data_collision_b_a <= 2'b10; display_ra_wb; end -// 6'b011001 : begin data_collision_b_a <= 2'b00; display_ra_wb; end -// 6'b100001 : begin data_collision_b_a <= 2'b00; display_ra_wb; end - 6'b100101 : begin data_collision_b_a <= 2'b10; display_ra_wb; end -// 6'b101001 : begin data_collision_b_a <= 2'b00; display_ra_wb; end -// 6'b000010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b000110 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b001010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b010010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b010110 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b011010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b100010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b100110 : begin data_collision_b_a <= 2'b00; display_wa_rb; end -// 6'b101010 : begin data_collision_b_a <= 2'b00; display_wa_rb; end - endcase - end - end - setup_rf_b_a <= 0; - end - - - always @(posedge clka_int) begin - if ((output_flag || display_flag)) begin - addra_reg <= addra_int; - ena_reg <= ena_int; - ssra_reg <= ssra_int; - wea_reg <= wea_int; - end - end - - always @(posedge clkb_int) begin - if ((output_flag || display_flag)) begin - addrb_reg <= addrb_int; - enb_reg <= enb_int; - ssrb_reg <= ssrb_int; - web_reg <= web_int; - end - end - - - // Data - always @(posedge memory_collision) begin - if ((output_flag || display_flag)) begin - mem[addra_int] <= 32'bx; - memory_collision <= 0; - end - - end - - always @(posedge memory_collision_a_b) begin - if ((output_flag || display_flag)) begin - mem[addra_reg] <= 32'bx; - memory_collision_a_b <= 0; - end - end - - always @(posedge memory_collision_b_a) begin - if ((output_flag || display_flag)) begin - mem[addra_int] <= 32'bx; - memory_collision_b_a <= 0; - end - end - - always @(posedge data_collision[1]) begin - if (ssra_int == 0 && output_flag) begin - doa_out <= #100 32'bX; - end - data_collision[1] <= 0; - end - - always @(posedge data_collision[0]) begin - if (ssrb_int == 0 && output_flag) begin - dob_out <= #100 32'bX; - end - data_collision[0] <= 0; - end - - always @(posedge data_collision_a_b[1]) begin - if (ssra_reg == 0 && output_flag) begin - doa_out <= #100 32'bX; - end - data_collision_a_b[1] <= 0; - end - - always @(posedge data_collision_a_b[0]) begin - if (ssrb_int == 0 && output_flag) begin - dob_out <= #100 32'bX; - end - data_collision_a_b[0] <= 0; - end - - always @(posedge data_collision_b_a[1]) begin - if (ssra_int == 0 && output_flag) begin - doa_out <= #100 32'bX; - end - data_collision_b_a[1] <= 0; - end - - always @(posedge data_collision_b_a[0]) begin - if (ssrb_reg == 0 && output_flag) begin - dob_out <= #100 32'bX; - end - data_collision_b_a[0] <= 0; - end - -// x parity start - always @(posedge memory_collision) begin - if ((output_flag || display_flag)) - memp[addra_int] <= 4'bx; - end - - always @(posedge memory_collision_a_b) begin - if ((output_flag || display_flag)) - memp[addra_reg] <= 4'bx; - end - - always @(posedge memory_collision_b_a) begin - if ((output_flag || display_flag)) - memp[addra_int] <= 4'bx; - end - - always @(posedge data_collision[1]) begin - if (ssra_int == 0 && output_flag) begin - dopa_out <= #100 4'bX; - end - end - - always @(posedge data_collision_a_b[1]) begin - if (ssra_reg == 0 && output_flag) begin - dopa_out <= #100 4'bX; - end - end - - - always @(posedge data_collision_b_a[1]) begin - if (ssra_int == 0 && output_flag) begin - dopa_out <= #100 4'bX; - end - end - - always @(posedge data_collision[0]) begin - if (ssrb_int == 0 && output_flag) begin - dopb_out <= #100 4'bx; - end - end - - always @(posedge data_collision_a_b[0]) begin - if (ssrb_int == 0 && output_flag) begin - dopb_out <= #100 4'bx; - end - end - - always @(posedge data_collision_b_a[0]) begin - if (ssrb_reg == 0 && output_flag) begin - dopb_out <= #100 4'bx; - end - end -// x parity end - - initial begin - case (WRITE_MODE_A) - "WRITE_FIRST" : wr_mode_a <= 2'b00; - "READ_FIRST" : wr_mode_a <= 2'b01; - "NO_CHANGE" : wr_mode_a <= 2'b10; - default : begin - $display("Attribute Syntax Error : The Attribute WRITE_MODE_A on RAMB16_S36_S36 instance %m is set to %s. Legal values for this attribute are WRITE_FIRST, READ_FIRST or NO_CHANGE.", WRITE_MODE_A); - $finish; - end - endcase - end - - initial begin - case (WRITE_MODE_B) - "WRITE_FIRST" : wr_mode_b <= 2'b00; - "READ_FIRST" : wr_mode_b <= 2'b01; - "NO_CHANGE" : wr_mode_b <= 2'b10; - default : begin - $display("Attribute Syntax Error : The Attribute WRITE_MODE_B on RAMB16_S36_S36 instance %m is set to %s. Legal values for this attribute are WRITE_FIRST, READ_FIRST or NO_CHANGE.", WRITE_MODE_B); - $finish; - end - endcase - end - - - // Port A - always @(posedge clka_int) begin - - if (ena_int == 1'b1) begin - - if (ssra_int == 1'b1) begin - {dopa_out, doa_out} <= #100 SRVAL_A; - end - else begin - if (wea_int == 1'b1) begin - if (wr_mode_a == 2'b00) begin - doa_out <= #100 dia_int; - dopa_out <= #100 dipa_int; - end - else if (wr_mode_a == 2'b01) begin - - doa_out <= #100 mem[addra_int]; - dopa_out <= #100 memp[addra_int]; - - end - end - else begin - - doa_out <= #100 mem[addra_int]; - dopa_out <= #100 memp[addra_int]; - - end - end - - // memory - if (wea_int == 1'b1) begin - mem[addra_int] <= dia_int; - memp[addra_int] <= dipa_int; - end - - end - end - - - // Port B - always @(posedge clkb_int) begin - - if (enb_int == 1'b1) begin - - if (ssrb_int == 1'b1) begin - {dopb_out, dob_out} <= #100 SRVAL_B; - end - else begin - if (web_int == 1'b1) begin - if (wr_mode_b == 2'b00) begin - dob_out <= #100 dib_int; - dopb_out <= #100 dipb_int; - end - else if (wr_mode_b == 2'b01) begin - dob_out <= #100 mem[addrb_int]; - dopb_out <= #100 memp[addrb_int]; - end - end - else begin - dob_out <= #100 mem[addrb_int]; - dopb_out <= #100 memp[addrb_int]; - end - end - - // memory - if (web_int == 1'b1) begin - mem[addrb_int] <= dib_int; - memp[addrb_int] <= dipb_int; - end - - end - end - - -endmodule - -`endif diff --git a/eth/rtl/verilog/elastic_buffer.v b/eth/rtl/verilog/elastic_buffer.v deleted file mode 100644 index 56c821b7e..000000000 --- a/eth/rtl/verilog/elastic_buffer.v +++ /dev/null @@ -1,93 +0,0 @@ - - -module elastic_buffer - ( input rx_clk, - input tx_clk, - input rst, - - input [7:0] rxd, - input rx_dv, - input rx_er, - input crs, - input col, - - output [7:0] rxd_ret, - output rx_dv_ret, - output rx_er_ret, - output crs_ret, - output col_ret ); - - reg [3:0] addr_wr,addr_wr_gray,awg_d1,awg_d2,addr_wr_gray_ret,awgr_d1,addr_wr_ungray,addr_rd; - - reg [11:0] buffer [0:15]; - integer i; - initial - for(i=0;i<16;i=i+1) - buffer[i] <= 0; - - reg [7:0] rxd_d1, rxd_d2; - reg rx_dv_d1,rx_er_d1,crs_d1,col_d1, rx_dv_d2,rx_er_d2,crs_d2,col_d2; - wire rx_dv_ret_adv; - reg rx_dv_ontime; - - always @(posedge rx_clk) - {col_d1,crs_d1,rx_er_d1,rx_dv_d1,rxd_d1} <= {col,crs,rx_er,rx_dv,rxd}; - - always @(posedge rx_clk) - {col_d2,crs_d2,rx_er_d2,rx_dv_d2,rxd_d2} <= {col_d1,crs_d1,rx_er_d1,rx_dv_d1,rxd_d1}; - - always @(posedge rx_clk) - buffer[addr_wr] <= {col_d2,crs_d2,rx_er_d2,rx_dv_d1,rxd_d2}; - - always @(posedge rx_clk or posedge rst) - if(rst) addr_wr <= 0; - else addr_wr <= addr_wr + 1; - - always @(posedge rx_clk) - begin - addr_wr_gray <= {addr_wr[3],^addr_wr[3:2],^addr_wr[2:1],^addr_wr[1:0]}; - awg_d1 <= addr_wr_gray; - awg_d2 <= awg_d1; - end - - always @(posedge tx_clk) - begin - addr_wr_gray_ret <= awg_d2; - awgr_d1 <= addr_wr_gray_ret; - addr_wr_ungray <= {awgr_d1[3],^awgr_d1[3:2],^awgr_d1[3:1],^awgr_d1[3:0]}; - end - - wire [3:0] addr_delta = addr_rd-addr_wr_ungray; - reg [1:0] direction; - localparam retard = 2'd0; - localparam good = 2'd1; - localparam advance = 2'd2; - localparam wayoff = 2'd3; - - always @* - case(addr_delta) - 4'd1, 4'd2, 4'd3, 4'd4, 4'd5 : direction <= retard; - 4'd15, 4'd14, 4'd13, 4'd12, 4'd11 : direction <= advance; - 4'd0 : direction <= good; - default : direction <= wayoff; - endcase // case(addr_delta) - - always @(posedge tx_clk or posedge rst) - if(rst) - addr_rd <= 0; - else if(rx_dv_ret_adv | rx_dv_ontime) - addr_rd <= addr_rd + 1; - else - case(direction) - retard : addr_rd <= addr_rd; - advance : addr_rd <= addr_rd + 2; - good : addr_rd <= addr_rd + 1; - wayoff : addr_rd <= addr_wr_ungray; - endcase // case(direction) - - assign {col_ret,crs_ret,rx_er_ret,rx_dv_ret_adv,rxd_ret} = buffer[addr_rd]; - always @(posedge tx_clk) - rx_dv_ontime <= rx_dv_ret_adv; - - assign rx_dv_ret = rx_dv_ontime; -endmodule // elastic_buffer diff --git a/eth/rtl/verilog/elastic_buffer_tb.v b/eth/rtl/verilog/elastic_buffer_tb.v deleted file mode 100644 index 757049ec4..000000000 --- a/eth/rtl/verilog/elastic_buffer_tb.v +++ /dev/null @@ -1,66 +0,0 @@ - -module elastic_buffer_tb; - - reg rx_clk = 0, tx_clk = 0, rst = 1; - - reg [7:0] rxd; - wire [7:0] rxd_ret; - reg rx_dv, rx_er, crs, col; - wire rx_dv_ret, rx_er_ret, crs_ret, col_ret; - - elastic_buffer elastic_buffer - (.rx_clk(rx_clk),.tx_clk(tx_clk),.rst(rst), - .rxd(rxd),.rx_dv(rx_dv),.rx_er(rx_er),.crs(crs),.col(col), - .rxd_ret(rxd_ret),.rx_dv_ret(rx_dv_ret),.rx_er_ret(rx_er_ret), - .crs_ret(crs_ret),.col_ret(col_ret) ); - - always #100 rx_clk = ~rx_clk; - always #101 tx_clk = ~tx_clk; - initial #950 rst = 0; - - initial - begin - {col,crs,rx_er,rx_dv,rxd} <= 0; - @(negedge rst); - @(posedge rx_clk); - - repeat (13) - begin - repeat (284) - @(posedge rx_clk); - SendPKT; - end - repeat (100) - @(posedge rx_clk); - $finish; - end // initial begin - - reg [7:0] rxd_ret_d1; - always @(posedge tx_clk) - rxd_ret_d1 <= rxd_ret; - - wire [7:0] diff = rxd_ret_d1 - rxd_ret; - - wire error = rx_dv_ret && (diff != 8'hFF); - - task SendPKT; - begin - {col,crs,rx_er,rx_dv,rxd} <= 0; - @(posedge rx_clk); - {col,crs,rx_er,rx_dv,rxd} <= {4'hF,8'd1}; - @(posedge rx_clk); - repeat (250) - begin - rxd <= rxd + 1; - @(posedge rx_clk); - end - {col,crs,rx_er,rx_dv,rxd} <= 0; - @(posedge rx_clk); - end - endtask // SendPKT - - initial begin - $dumpfile("elastic_buffer_tb.vcd"); - $dumpvars(0,elastic_buffer_tb); - end -endmodule // elastic_buffer_tb diff --git a/eth/rtl/verilog/eth_miim.v b/eth/rtl/verilog/eth_miim.v deleted file mode 100644 index a15c94205..000000000 --- a/eth/rtl/verilog/eth_miim.v +++ /dev/null @@ -1,470 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// eth_miim.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects/ethmac/ ////
-//// ////
-//// Author(s): ////
-//// - Igor Mohor (igorM@opencores.org) ////
-//// ////
-//// All additional information is avaliable in the Readme.txt ////
-//// file. ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: eth_miim.v,v $
-// Revision 1.3 2006/01/19 14:07:53 maverickist
-// verification is complete.
-//
-// Revision 1.1.1.1 2005/12/13 01:51:44 Administrator
-// no message
-//
-// Revision 1.4 2005/08/16 12:07:57 Administrator
-// no message
-//
-// Revision 1.3 2005/05/19 07:04:29 Administrator
-// no message
-//
-// Revision 1.2 2005/04/27 15:58:46 Administrator
-// no message
-//
-// Revision 1.1.1.1 2004/12/15 06:38:54 Administrator
-// no message
-//
-// Revision 1.5 2003/05/16 10:08:27 mohor
-// Busy was set 2 cycles too late. Reported by Dennis Scott.
-//
-// Revision 1.4 2002/08/14 18:32:10 mohor
-// - Busy signal was not set on time when scan status operation was performed
-// and clock was divided with more than 2.
-// - Nvalid remains valid two more clocks (was previously cleared too soon).
-//
-// Revision 1.3 2002/01/23 10:28:16 mohor
-// Link in the header changed.
-//
-// Revision 1.2 2001/10/19 08:43:51 mohor
-// eth_timescale.v changed to timescale.v This is done because of the
-// simulation of the few cores in a one joined project.
-//
-// Revision 1.1 2001/08/06 14:44:29 mohor
-// A define FPGA added to select between Artisan RAM (for ASIC) and Block Ram (For Virtex).
-// Include files fixed to contain no path.
-// File names and module names changed ta have a eth_ prologue in the name.
-// File eth_timescale.v is used to define timescale
-// All pin names on the top module are changed to contain _I, _O or _OE at the end.
-// Bidirectional signal MDIO is changed to three signals (Mdc_O, Mdi_I, Mdo_O
-// and Mdo_OE. The bidirectional signal must be created on the top level. This
-// is done due to the ASIC tools.
-//
-// Revision 1.2 2001/08/02 09:25:31 mohor
-// Unconnected signals are now connected.
-//
-// Revision 1.1 2001/07/30 21:23:42 mohor
-// Directory structure changed. Files checked and joind together.
-//
-// Revision 1.3 2001/06/01 22:28:56 mohor
-// This files (MIIM) are fully working. They were thoroughly tested. The testbench is not updated.
-//
-//
-
-module eth_miim
-(
- Clk,
- Reset,
- Divider,
- NoPre,
- CtrlData,
- Rgad,
- Fiad,
- WCtrlData,
- RStat,
- ScanStat,
- Mdio,
- Mdc,
- Busy,
- Prsd,
- LinkFail,
- Nvalid,
- WCtrlDataStart,
- RStatStart,
- UpdateMIIRX_DATAReg
-);
-
-input Clk; // Host Clock
-input Reset; // General Reset
-input [7:0] Divider; // Divider for the host clock
-input [15:0] CtrlData; // Control Data (to be written to the PHY reg.)
-input [4:0] Rgad; // Register Address (within the PHY)
-input [4:0] Fiad; // PHY Address
-input NoPre; // No Preamble (no 32-bit preamble)
-input WCtrlData; // Write Control Data operation
-input RStat; // Read Status operation
-input ScanStat; // Scan Status operation
-inout Mdio; // MII Management Data In
-
-output Mdc; // MII Management Data Clock
-
-output Busy; // Busy Signal
-output LinkFail; // Link Integrity Signal
-output Nvalid; // Invalid Status (qualifier for the valid scan result)
-
-output [15:0] Prsd; // Read Status Data (data read from the PHY)
-
-output WCtrlDataStart; // This signals resets the WCTRLDATA bit in the MIIM Command register
-output RStatStart; // This signal resets the RSTAT BIT in the MIIM Command register
-output UpdateMIIRX_DATAReg;// Updates MII RX_DATA register with read data
-
-//parameter Tp = 1;
-
-
-reg Nvalid;
-reg EndBusy_d; // Pre-end Busy signal
-reg EndBusy; // End Busy signal (stops the operation in progress)
-
-reg WCtrlData_q1; // Write Control Data operation delayed 1 Clk cycle
-reg WCtrlData_q2; // Write Control Data operation delayed 2 Clk cycles
-reg WCtrlData_q3; // Write Control Data operation delayed 3 Clk cycles
-reg WCtrlDataStart; // Start Write Control Data Command (positive edge detected)
-reg WCtrlDataStart_q;
-reg WCtrlDataStart_q1; // Start Write Control Data Command delayed 1 Mdc cycle
-reg WCtrlDataStart_q2; // Start Write Control Data Command delayed 2 Mdc cycles
-
-reg RStat_q1; // Read Status operation delayed 1 Clk cycle
-reg RStat_q2; // Read Status operation delayed 2 Clk cycles
-reg RStat_q3; // Read Status operation delayed 3 Clk cycles
-reg RStatStart; // Start Read Status Command (positive edge detected)
-reg RStatStart_q1; // Start Read Status Command delayed 1 Mdc cycle
-reg RStatStart_q2; // Start Read Status Command delayed 2 Mdc cycles
-
-reg ScanStat_q1; // Scan Status operation delayed 1 cycle
-reg ScanStat_q2; // Scan Status operation delayed 2 cycles
-reg SyncStatMdcEn; // Scan Status operation delayed at least cycles and synchronized to MdcEn
-
-wire WriteDataOp; // Write Data Operation (positive edge detected)
-wire ReadStatusOp; // Read Status Operation (positive edge detected)
-wire ScanStatusOp; // Scan Status Operation (positive edge detected)
-wire StartOp; // Start Operation (start of any of the preceding operations)
-wire EndOp; // End of Operation
-
-reg InProgress; // Operation in progress
-reg InProgress_q1; // Operation in progress delayed 1 Mdc cycle
-reg InProgress_q2; // Operation in progress delayed 2 Mdc cycles
-reg InProgress_q3; // Operation in progress delayed 3 Mdc cycles
-
-reg WriteOp; // Write Operation Latch (When asserted, write operation is in progress)
-reg [6:0] BitCounter; // Bit Counter
-
-
-wire [3:0] ByteSelect; // Byte Select defines which byte (preamble, data, operation, etc.) is loaded and shifted through the shift register.
-wire MdcEn; // MII Management Data Clock Enable signal is asserted for one Clk period before Mdc rises.
-wire ShiftedBit; // This bit is output of the shift register and is connected to the Mdo signal
-
-
-wire LatchByte1_d2;
-wire LatchByte0_d2;
-reg LatchByte1_d;
-reg LatchByte0_d;
-reg [1:0] LatchByte; // Latch Byte selects which part of Read Status Data is updated from the shift register
-
-reg UpdateMIIRX_DATAReg;// Updates MII RX_DATA register with read data
-
-wire Mdo; // MII Management Data Output
-wire MdoEn; // MII Management Data Output Enable
-wire Mdi;
-
-assign Mdi=Mdio;
-assign Mdio=MdoEn?Mdo:1'bz;
-
-
-
-// Generation of the EndBusy signal. It is used for ending the MII Management operation.
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- begin
- EndBusy_d <= 1'b0;
- EndBusy <= 1'b0;
- end
- else
- begin
- EndBusy_d <= ~InProgress_q2 & InProgress_q3;
- EndBusy <= EndBusy_d;
- end
-end
-
-
-// Update MII RX_DATA register
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- UpdateMIIRX_DATAReg <= 0;
- else
- if(EndBusy & ~WCtrlDataStart_q)
- UpdateMIIRX_DATAReg <= 1;
- else
- UpdateMIIRX_DATAReg <= 0;
-end
-
-
-
-// Generation of the delayed signals used for positive edge triggering.
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- begin
- WCtrlData_q1 <= 1'b0;
- WCtrlData_q2 <= 1'b0;
- WCtrlData_q3 <= 1'b0;
-
- RStat_q1 <= 1'b0;
- RStat_q2 <= 1'b0;
- RStat_q3 <= 1'b0;
-
- ScanStat_q1 <= 1'b0;
- ScanStat_q2 <= 1'b0;
- SyncStatMdcEn <= 1'b0;
- end
- else
- begin
- WCtrlData_q1 <= WCtrlData;
- WCtrlData_q2 <= WCtrlData_q1;
- WCtrlData_q3 <= WCtrlData_q2;
-
- RStat_q1 <= RStat;
- RStat_q2 <= RStat_q1;
- RStat_q3 <= RStat_q2;
-
- ScanStat_q1 <= ScanStat;
- ScanStat_q2 <= ScanStat_q1;
- if(MdcEn)
- SyncStatMdcEn <= ScanStat_q2;
- end
-end
-
-
-// Generation of the Start Commands (Write Control Data or Read Status)
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- begin
- WCtrlDataStart <= 1'b0;
- WCtrlDataStart_q <= 1'b0;
- RStatStart <= 1'b0;
- end
- else
- begin
- if(EndBusy)
- begin
- WCtrlDataStart <= 1'b0;
- RStatStart <= 1'b0;
- end
- else
- begin
- if(WCtrlData_q2 & ~WCtrlData_q3)
- WCtrlDataStart <= 1'b1;
- if(RStat_q2 & ~RStat_q3)
- RStatStart <= 1'b1;
- WCtrlDataStart_q <= WCtrlDataStart;
- end
- end
-end
-
-
-// Generation of the Nvalid signal (indicates when the status is invalid)
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- Nvalid <= 1'b0;
- else
- begin
- if(~InProgress_q2 & InProgress_q3)
- begin
- Nvalid <= 1'b0;
- end
- else
- begin
- if(ScanStat_q2 & ~SyncStatMdcEn)
- Nvalid <= 1'b1;
- end
- end
-end
-
-// Signals used for the generation of the Operation signals (positive edge)
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- begin
- WCtrlDataStart_q1 <= 1'b0;
- WCtrlDataStart_q2 <= 1'b0;
-
- RStatStart_q1 <= 1'b0;
- RStatStart_q2 <= 1'b0;
-
- InProgress_q1 <= 1'b0;
- InProgress_q2 <= 1'b0;
- InProgress_q3 <= 1'b0;
-
- LatchByte0_d <= 1'b0;
- LatchByte1_d <= 1'b0;
-
- LatchByte <= 2'b00;
- end
- else
- begin
- if(MdcEn)
- begin
- WCtrlDataStart_q1 <= WCtrlDataStart;
- WCtrlDataStart_q2 <= WCtrlDataStart_q1;
-
- RStatStart_q1 <= RStatStart;
- RStatStart_q2 <= RStatStart_q1;
-
- LatchByte[0] <= LatchByte0_d;
- LatchByte[1] <= LatchByte1_d;
-
- LatchByte0_d <= LatchByte0_d2;
- LatchByte1_d <= LatchByte1_d2;
-
- InProgress_q1 <= InProgress;
- InProgress_q2 <= InProgress_q1;
- InProgress_q3 <= InProgress_q2;
- end
- end
-end
-
-
-// Generation of the Operation signals
-assign WriteDataOp = WCtrlDataStart_q1 & ~WCtrlDataStart_q2;
-assign ReadStatusOp = RStatStart_q1 & ~RStatStart_q2;
-assign ScanStatusOp = SyncStatMdcEn & ~InProgress & ~InProgress_q1 & ~InProgress_q2;
-assign StartOp = WriteDataOp | ReadStatusOp | ScanStatusOp;
-
-// Busy
-reg Busy;
-always @ (posedge Clk or posedge Reset)
- if (Reset)
- Busy <=0;
- else if(WCtrlData | WCtrlDataStart | RStat | RStatStart | SyncStatMdcEn | EndBusy | InProgress | InProgress_q3 | Nvalid)
- Busy <=1;
- else
- Busy <=0;
-
-//assign Busy = WCtrlData | WCtrlDataStart | RStat | RStatStart | SyncStatMdcEn | EndBusy | InProgress | InProgress_q3 | Nvalid;
-
-
-// Generation of the InProgress signal (indicates when an operation is in progress)
-// Generation of the WriteOp signal (indicates when a write is in progress)
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- begin
- InProgress <= 1'b0;
- WriteOp <= 1'b0;
- end
- else
- begin
- if(MdcEn)
- begin
- if(StartOp)
- begin
- if(~InProgress)
- WriteOp <= WriteDataOp;
- InProgress <= 1'b1;
- end
- else
- begin
- if(EndOp)
- begin
- InProgress <= 1'b0;
- WriteOp <= 1'b0;
- end
- end
- end
- end
-end
-
-
-
-// Bit Counter counts from 0 to 63 (from 32 to 63 when NoPre is asserted)
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- BitCounter[6:0] <= 7'h0;
- else
- begin
- if(MdcEn)
- begin
- if(InProgress)
- begin
- if(NoPre & ( BitCounter == 7'h0 ))
- BitCounter[6:0] <= 7'h21;
- else
- BitCounter[6:0] <= BitCounter[6:0] + 1'b1;
- end
- else
- BitCounter[6:0] <= 7'h0;
- end
- end
-end
-
-
-// Operation ends when the Bit Counter reaches 63
-assign EndOp = BitCounter==63;
-
-assign ByteSelect[0] = InProgress & ((NoPre & (BitCounter == 7'h0)) | (~NoPre & (BitCounter == 7'h20)));
-assign ByteSelect[1] = InProgress & (BitCounter == 7'h28);
-assign ByteSelect[2] = InProgress & WriteOp & (BitCounter == 7'h30);
-assign ByteSelect[3] = InProgress & WriteOp & (BitCounter == 7'h38);
-
-
-// Latch Byte selects which part of Read Status Data is updated from the shift register
-assign LatchByte1_d2 = InProgress & ~WriteOp & BitCounter == 7'h37;
-assign LatchByte0_d2 = InProgress & ~WriteOp & BitCounter == 7'h3F;
-
-wire MdcEn_n;
-
-// Connecting the Clock Generator Module
-eth_clockgen clkgen(.Clk(Clk), .Reset(Reset), .Divider(Divider[7:0]), .MdcEn(MdcEn), .MdcEn_n(MdcEn_n), .Mdc(Mdc)
- );
-
-// Connecting the Shift Register Module
-eth_shiftreg shftrg(.Clk(Clk), .Reset(Reset), .MdcEn_n(MdcEn_n), .Mdi(Mdi), .Fiad(Fiad), .Rgad(Rgad),
- .CtrlData(CtrlData), .WriteOp(WriteOp), .ByteSelect(ByteSelect), .LatchByte(LatchByte),
- .ShiftedBit(ShiftedBit), .Prsd(Prsd), .LinkFail(LinkFail)
- );
-
-// Connecting the Output Control Module
-eth_outputcontrol outctrl(.Clk(Clk), .Reset(Reset), .MdcEn_n(MdcEn_n), .InProgress(InProgress),
- .ShiftedBit(ShiftedBit), .BitCounter(BitCounter), .WriteOp(WriteOp), .NoPre(NoPre),
- .Mdo(Mdo), .MdoEn(MdoEn)
- );
-
-endmodule
diff --git a/eth/rtl/verilog/flow_ctrl_rx.v b/eth/rtl/verilog/flow_ctrl_rx.v deleted file mode 100644 index 6654c626b..000000000 --- a/eth/rtl/verilog/flow_ctrl_rx.v +++ /dev/null @@ -1,86 +0,0 @@ -
-// RX side of flow control -- when we are running out of RX space, send a PAUSE
-
-module flow_ctrl_rx
- (input rst,
- //host processor
- input pause_frame_send_en,
- input [15:0] pause_quanta_set,
- input [15:0] fc_hwmark,
- input [15:0] fc_lwmark,
- input [15:0] fc_padtime,
- // From MAC_rx_ctrl
- input rx_clk,
- input [15:0] rx_fifo_space,
- // MAC_tx_ctrl
- input tx_clk,
- output reg xoff_gen,
- output reg xon_gen,
- input xoff_gen_complete,
- input xon_gen_complete
- );
-
- // ******************************************************************************
- // Force our TX to send a PAUSE frame because our RX is nearly full
- // ******************************************************************************
-
- reg xon_int, xoff_int;
- reg [21:0] countdown;
-
- always @(posedge rx_clk or posedge rst)
- if(rst)
- begin
- xon_int <= 0;
- xoff_int <= 0;
- end
- else
- begin
- xon_int <= 0;
- xoff_int <= 0;
- if(pause_frame_send_en)
- if(countdown == 0)
- if(rx_fifo_space < fc_lwmark)
- xoff_int <= 1;
- else
- ;
- else
- if(rx_fifo_space > fc_hwmark)
- xon_int <= 1;
- end // else: !if(rst)
-
- reg xoff_int_d1, xon_int_d1;
-
- always @(posedge rx_clk)
- xon_int_d1 <= xon_int;
- always @(posedge rx_clk)
- xoff_int_d1 <= xoff_int;
-
- always @ (posedge tx_clk or posedge rst)
- if (rst)
- xoff_gen <=0;
- else if (xoff_gen_complete)
- xoff_gen <=0;
- else if (xoff_int | xoff_int_d1)
- xoff_gen <=1;
-
- always @ (posedge tx_clk or posedge rst)
- if (rst)
- xon_gen <=0;
- else if (xon_gen_complete)
- xon_gen <=0;
- else if (xon_int | xon_int_d1)
- xon_gen <=1;
-
- wire [21:0] pq_reduced = {pause_quanta_set,6'd0} - {6'd0,fc_padtime};
-
- always @(posedge tx_clk or posedge rst)
- if(rst)
- countdown <= 0;
- else if(xoff_gen)
- countdown <= pq_reduced;
- else if(xon_gen)
- countdown <= 0;
- else if(countdown != 0)
- countdown <= countdown - 1;
-
-endmodule // flow_ctrl
diff --git a/eth/rtl/verilog/flow_ctrl_tx.v b/eth/rtl/verilog/flow_ctrl_tx.v deleted file mode 100644 index 9f7556de4..000000000 --- a/eth/rtl/verilog/flow_ctrl_tx.v +++ /dev/null @@ -1,36 +0,0 @@ -
-// TX side of flow control -- when other side sends PAUSE, we wait
-
-module flow_ctrl_tx
- (input rst,
- input tx_clk,
- //host processor
- input tx_pause_en,
- // From MAC_rx_ctrl
- input [15:0] pause_quanta,
- input pause_quanta_val,
- // MAC_tx_ctrl
- output pause_apply,
- input pause_quanta_sub);
-
- // ******************************************************************************
- // Inhibit our TX from transmitting because they sent us a PAUSE frame
- // ******************************************************************************
-
- reg [15:0] pause_quanta_counter;
- reg pqval_d1, pqval_d2;
-
- always @(posedge tx_clk) pqval_d1 <= pause_quanta_val;
- always @(posedge tx_clk) pqval_d2 <= pqval_d1;
-
- always @ (posedge tx_clk or posedge rst)
- if (rst)
- pause_quanta_counter <= 0;
- else if (pqval_d1 & ~pqval_d2)
- pause_quanta_counter <= pause_quanta;
- else if((pause_quanta_counter!=0) & pause_quanta_sub)
- pause_quanta_counter <= pause_quanta_counter - 1;
-
- assign pause_apply = tx_pause_en & (pause_quanta_counter != 0);
-
-endmodule // flow_ctrl
diff --git a/eth/rtl/verilog/header.vh b/eth/rtl/verilog/header.vh deleted file mode 100644 index ca0b580e4..000000000 --- a/eth/rtl/verilog/header.vh +++ /dev/null @@ -1,7 +0,0 @@ -`define MAC_SOURCE_REPLACE_EN 1
-`define MAC_TARGET_CHECK_EN 1
-`define MAC_BROADCAST_FILTER_EN 1
-`define MAC_TX_FF_DEPTH 9
-`define MAC_RX_FF_DEPTH 9
-`define MAC_TARGET_XILINX 1
-// `define MAC_TARGET_ALTERA 1
diff --git a/eth/rtl/verilog/miim/eth_clockgen.v b/eth/rtl/verilog/miim/eth_clockgen.v deleted file mode 100644 index 9da732f7f..000000000 --- a/eth/rtl/verilog/miim/eth_clockgen.v +++ /dev/null @@ -1,141 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// eth_clockgen.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects/ethmac/ ////
-//// ////
-//// Author(s): ////
-//// - Igor Mohor (igorM@opencores.org) ////
-//// ////
-//// All additional information is avaliable in the Readme.txt ////
-//// file. ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: eth_clockgen.v,v $
-// Revision 1.2 2005/12/13 12:54:49 maverickist
-// first simulation passed
-//
-// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator
-// no message
-//
-// Revision 1.2 2005/04/27 15:58:45 Administrator
-// no message
-//
-// Revision 1.1.1.1 2004/12/15 06:38:54 Administrator
-// no message
-//
-// Revision 1.3 2002/01/23 10:28:16 mohor
-// Link in the header changed.
-//
-// Revision 1.2 2001/10/19 08:43:51 mohor
-// eth_timescale.v changed to timescale.v This is done because of the
-// simulation of the few cores in a one joined project.
-//
-// Revision 1.1 2001/08/06 14:44:29 mohor
-// A define FPGA added to select between Artisan RAM (for ASIC) and Block Ram (For Virtex).
-// Include files fixed to contain no path.
-// File names and module names changed ta have a eth_ prologue in the name.
-// File eth_timescale.v is used to define timescale
-// All pin names on the top module are changed to contain _I, _O or _OE at the end.
-// Bidirectional signal MDIO is changed to three signals (Mdc_O, Mdi_I, Mdo_O
-// and Mdo_OE. The bidirectional signal must be created on the top level. This
-// is done due to the ASIC tools.
-//
-// Revision 1.1 2001/07/30 21:23:42 mohor
-// Directory structure changed. Files checked and joind together.
-//
-// Revision 1.3 2001/06/01 22:28:55 mohor
-// This files (MIIM) are fully working. They were thoroughly tested. The testbench is not updated.
-//
-//
-
-module eth_clockgen(Clk, Reset, Divider, MdcEn, MdcEn_n, Mdc);
-
-//parameter Tp=1;
-
-input Clk; // Input clock (Host clock)
-input Reset; // Reset signal
-input [7:0] Divider; // Divider (input clock will be divided by the Divider[7:0])
-
-output Mdc; // Output clock
-output MdcEn; // Enable signal is asserted for one Clk period before Mdc rises.
-output MdcEn_n; // Enable signal is asserted for one Clk period before Mdc falls.
-
-reg Mdc;
-reg [7:0] Counter;
-
-wire CountEq0;
-wire [7:0] CounterPreset;
-wire [7:0] TempDivider;
-
-
-assign TempDivider[7:0] = (Divider[7:0]<2)? 8'h02 : Divider[7:0]; // If smaller than 2
-assign CounterPreset[7:0] = (TempDivider[7:0]>>1) -1; // We are counting half of period
-
-
-// Counter counts half period
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- Counter[7:0] <= 8'h1;
- else
- begin
- if(CountEq0)
- begin
- Counter[7:0] <= CounterPreset[7:0];
- end
- else
- Counter[7:0] <= Counter - 8'h1;
- end
-end
-
-
-// Mdc is asserted every other half period
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- Mdc <= 1'b0;
- else
- begin
- if(CountEq0)
- Mdc <= ~Mdc;
- end
-end
-
-
-assign CountEq0 = Counter == 8'h0;
-assign MdcEn = CountEq0 & ~Mdc;
-assign MdcEn_n = CountEq0 & Mdc;
-
-endmodule
-
-
diff --git a/eth/rtl/verilog/miim/eth_outputcontrol.v b/eth/rtl/verilog/miim/eth_outputcontrol.v deleted file mode 100644 index 3df6c560a..000000000 --- a/eth/rtl/verilog/miim/eth_outputcontrol.v +++ /dev/null @@ -1,158 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// eth_outputcontrol.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects/ethmac/ ////
-//// ////
-//// Author(s): ////
-//// - Igor Mohor (igorM@opencores.org) ////
-//// ////
-//// All additional information is avaliable in the Readme.txt ////
-//// file. ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: eth_outputcontrol.v,v $
-// Revision 1.2 2005/12/13 12:54:49 maverickist
-// first simulation passed
-//
-// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator
-// no message
-//
-// Revision 1.2 2005/04/27 15:58:46 Administrator
-// no message
-//
-// Revision 1.1.1.1 2004/12/15 06:38:54 Administrator
-// no message
-//
-// Revision 1.4 2002/07/09 20:11:59 mohor
-// Comment removed.
-//
-// Revision 1.3 2002/01/23 10:28:16 mohor
-// Link in the header changed.
-//
-// Revision 1.2 2001/10/19 08:43:51 mohor
-// eth_timescale.v changed to timescale.v This is done because of the
-// simulation of the few cores in a one joined project.
-//
-// Revision 1.1 2001/08/06 14:44:29 mohor
-// A define FPGA added to select between Artisan RAM (for ASIC) and Block Ram (For Virtex).
-// Include files fixed to contain no path.
-// File names and module names changed ta have a eth_ prologue in the name.
-// File eth_timescale.v is used to define timescale
-// All pin names on the top module are changed to contain _I, _O or _OE at the end.
-// Bidirectional signal MDIO is changed to three signals (Mdc_O, Mdi_I, Mdo_O
-// and Mdo_OE. The bidirectional signal must be created on the top level. This
-// is done due to the ASIC tools.
-//
-// Revision 1.1 2001/07/30 21:23:42 mohor
-// Directory structure changed. Files checked and joind together.
-//
-// Revision 1.3 2001/06/01 22:28:56 mohor
-// This files (MIIM) are fully working. They were thoroughly tested. The testbench is not updated.
-//
-//
-
-module eth_outputcontrol(Clk, Reset, InProgress, ShiftedBit, BitCounter, WriteOp, NoPre, MdcEn_n, Mdo, MdoEn);
-
-input Clk; // Host Clock
-input Reset; // General Reset
-input WriteOp; // Write Operation Latch (When asserted, write operation is in progress)
-input NoPre; // No Preamble (no 32-bit preamble)
-input InProgress; // Operation in progress
-input ShiftedBit; // This bit is output of the shift register and is connected to the Mdo signal
-input [6:0] BitCounter; // Bit Counter
-input MdcEn_n; // MII Management Data Clock Enable signal is asserted for one Clk period before Mdc falls.
-
-output Mdo; // MII Management Data Output
-output MdoEn; // MII Management Data Output Enable
-
-wire SerialEn;
-
-reg MdoEn_2d;
-reg MdoEn_d;
-reg MdoEn;
-
-reg Mdo_2d;
-reg Mdo_d;
-reg Mdo; // MII Management Data Output
-
-
-
-// Generation of the Serial Enable signal (enables the serialization of the data)
-assign SerialEn = WriteOp & InProgress & ( BitCounter>31 | ( ( BitCounter == 0 ) & NoPre ) )
- | ~WriteOp & InProgress & (( BitCounter>31 & BitCounter<46 ) | ( ( BitCounter == 0 ) & NoPre ));
-
-
-// Generation of the MdoEn signal
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- begin
- MdoEn_2d <= 1'b0;
- MdoEn_d <= 1'b0;
- MdoEn <= 1'b0;
- end
- else
- begin
- if(MdcEn_n)
- begin
- MdoEn_2d <= SerialEn | InProgress & BitCounter<32;
- MdoEn_d <= MdoEn_2d;
- MdoEn <= MdoEn_d;
- end
- end
-end
-
-
-// Generation of the Mdo signal.
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- begin
- Mdo_2d <= 1'b0;
- Mdo_d <= 1'b0;
- Mdo <= 1'b0;
- end
- else
- begin
- if(MdcEn_n)
- begin
- Mdo_2d <= ~SerialEn & BitCounter<32;
- Mdo_d <= ShiftedBit | Mdo_2d;
- Mdo <= Mdo_d;
- end
- end
-end
-
-
-
-endmodule
diff --git a/eth/rtl/verilog/miim/eth_shiftreg.v b/eth/rtl/verilog/miim/eth_shiftreg.v deleted file mode 100644 index 0b97bb7bc..000000000 --- a/eth/rtl/verilog/miim/eth_shiftreg.v +++ /dev/null @@ -1,159 +0,0 @@ -//////////////////////////////////////////////////////////////////////
-//// ////
-//// eth_shiftreg.v ////
-//// ////
-//// This file is part of the Ethernet IP core project ////
-//// http://www.opencores.org/projects/ethmac/ ////
-//// ////
-//// Author(s): ////
-//// - Igor Mohor (igorM@opencores.org) ////
-//// ////
-//// All additional information is avaliable in the Readme.txt ////
-//// file. ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//// ////
-//// Copyright (C) 2001 Authors ////
-//// ////
-//// This source file may be used and distributed without ////
-//// restriction provided that this copyright statement is not ////
-//// removed from the file and that any derivative work contains ////
-//// the original copyright notice and the associated disclaimer. ////
-//// ////
-//// This source file is free software; you can redistribute it ////
-//// and/or modify it under the terms of the GNU Lesser General ////
-//// Public License as published by the Free Software Foundation; ////
-//// either version 2.1 of the License, or (at your option) any ////
-//// later version. ////
-//// ////
-//// This source is distributed in the hope that it will be ////
-//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
-//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
-//// PURPOSE. See the GNU Lesser General Public License for more ////
-//// details. ////
-//// ////
-//// You should have received a copy of the GNU Lesser General ////
-//// Public License along with this source; if not, download it ////
-//// from http://www.opencores.org/lgpl.shtml ////
-//// ////
-//////////////////////////////////////////////////////////////////////
-//
-// CVS Revision History
-//
-// $Log: eth_shiftreg.v,v $
-// Revision 1.2 2005/12/13 12:54:49 maverickist
-// first simulation passed
-//
-// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator
-// no message
-//
-// Revision 1.2 2005/04/27 15:58:47 Administrator
-// no message
-//
-// Revision 1.1.1.1 2004/12/15 06:38:54 Administrator
-// no message
-//
-// Revision 1.5 2002/08/14 18:16:59 mohor
-// LinkFail signal was not latching appropriate bit.
-//
-// Revision 1.4 2002/03/02 21:06:01 mohor
-// LinkFail signal was not latching appropriate bit.
-//
-// Revision 1.3 2002/01/23 10:28:16 mohor
-// Link in the header changed.
-//
-// Revision 1.2 2001/10/19 08:43:51 mohor
-// eth_timescale.v changed to timescale.v This is done because of the
-// simulation of the few cores in a one joined project.
-//
-// Revision 1.1 2001/08/06 14:44:29 mohor
-// A define FPGA added to select between Artisan RAM (for ASIC) and Block Ram (For Virtex).
-// Include files fixed to contain no path.
-// File names and module names changed ta have a eth_ prologue in the name.
-// File eth_timescale.v is used to define timescale
-// All pin names on the top module are changed to contain _I, _O or _OE at the end.
-// Bidirectional signal MDIO is changed to three signals (Mdc_O, Mdi_I, Mdo_O
-// and Mdo_OE. The bidirectional signal must be created on the top level. This
-// is done due to the ASIC tools.
-//
-// Revision 1.1 2001/07/30 21:23:42 mohor
-// Directory structure changed. Files checked and joind together.
-//
-// Revision 1.3 2001/06/01 22:28:56 mohor
-// This files (MIIM) are fully working. They were thoroughly tested. The testbench is not updated.
-//
-//
-
-module eth_shiftreg(Clk, Reset, MdcEn_n, Mdi, Fiad, Rgad, CtrlData, WriteOp, ByteSelect,
- LatchByte, ShiftedBit, Prsd, LinkFail);
-
-
-input Clk; // Input clock (Host clock)
-input Reset; // Reset signal
-input MdcEn_n; // Enable signal is asserted for one Clk period before Mdc falls.
-input Mdi; // MII input data
-input [4:0] Fiad; // PHY address
-input [4:0] Rgad; // Register address (within the selected PHY)
-input [15:0]CtrlData; // Control data (data to be written to the PHY)
-input WriteOp; // The current operation is a PHY register write operation
-input [3:0] ByteSelect; // Byte select
-input [1:0] LatchByte; // Byte select for latching (read operation)
-
-output ShiftedBit; // Bit shifted out of the shift register
-output[15:0]Prsd; // Read Status Data (data read from the PHY)
-output LinkFail; // Link Integrity Signal
-
-reg [7:0] ShiftReg; // Shift register for shifting the data in and out
-reg [15:0]Prsd;
-reg LinkFail;
-
-
-
-
-// ShiftReg[7:0] :: Shift Register Data
-always @ (posedge Clk or posedge Reset)
-begin
- if(Reset)
- begin
- ShiftReg[7:0] <= 8'h0;
- Prsd[15:0] <= 16'h0;
- LinkFail <= 1'b0;
- end
- else
- begin
- if(MdcEn_n)
- begin
- if(|ByteSelect)
- begin
- case (ByteSelect[3:0])
- 4'h1 : ShiftReg[7:0] <= {2'b01, ~WriteOp, WriteOp, Fiad[4:1]};
- 4'h2 : ShiftReg[7:0] <= {Fiad[0], Rgad[4:0], 2'b10};
- 4'h4 : ShiftReg[7:0] <= CtrlData[15:8];
- 4'h8 : ShiftReg[7:0] <= CtrlData[7:0];
- default : ShiftReg[7:0] <= 8'h0;
- endcase
- end
- else
- begin
- ShiftReg[7:0] <= {ShiftReg[6:0], Mdi};
- if(LatchByte[0])
- begin
- Prsd[7:0] <= {ShiftReg[6:0], Mdi};
- if(Rgad == 5'h01)
- LinkFail <= ~ShiftReg[1]; // this is bit [2], because it is not shifted yet
- end
- else
- begin
- if(LatchByte[1])
- Prsd[15:8] <= {ShiftReg[6:0], Mdi};
- end
- end
- end
- end
-end
-
-
-assign ShiftedBit = ShiftReg[7];
-
-
-endmodule
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