diff options
Diffstat (limited to 'eth/rtl/verilog/MAC_rx/MAC_rx_add_chk.v')
| -rw-r--r-- | eth/rtl/verilog/MAC_rx/MAC_rx_add_chk.v | 158 |
1 files changed, 0 insertions, 158 deletions
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
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