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author | Martin Braun <martin.braun@ettus.com> | 2014-10-07 11:25:20 +0200 |
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committer | Martin Braun <martin.braun@ettus.com> | 2014-10-07 11:25:20 +0200 |
commit | fd3e84941de463fa1a7ebab0a69515b4bf2614cd (patch) | |
tree | 3fa721a13d41d2c0451d663a59a220a38fd5e614 /fpga/usrp2/models/IDDR2.v | |
parent | 3b66804e41891e358c790b453a7a59ec7462dba4 (diff) | |
download | uhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.tar.gz uhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.tar.bz2 uhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.zip |
Removed copy of FPGA source files.
Diffstat (limited to 'fpga/usrp2/models/IDDR2.v')
-rw-r--r-- | fpga/usrp2/models/IDDR2.v | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/fpga/usrp2/models/IDDR2.v b/fpga/usrp2/models/IDDR2.v deleted file mode 100644 index 727f1c568..000000000 --- a/fpga/usrp2/models/IDDR2.v +++ /dev/null @@ -1,172 +0,0 @@ -// $Header: /devl/xcs/repo/env/Databases/CAEInterfaces/verunilibs/data/spartan4/IDDR2.v,v 1.1 2004/06/21 21:45:36 wloo Exp $ -/////////////////////////////////////////////////////////////////////////////// -// Copyright (c) 1995/2004 Xilinx, Inc. -// All Right Reserved. -/////////////////////////////////////////////////////////////////////////////// -// ____ ____ -// / /\/ / -// /___/ \ / Vendor : Xilinx -// \ \ \/ Version : 10.1 -// \ \ Description : Xilinx Functional Simulation Library Component -// / / Dual Data Rate Input D Flip-Flop -// /___/ /\ Filename : IDDR2.v -// \ \ / \ Timestamp : Thu Mar 25 16:43:51 PST 2004 -// \___\/\___\ -// -// Revision: -// 03/23/04 - Initial version. - -`timescale 1 ps / 1 ps - -module IDDR2 (Q0, Q1, C0, C1, CE, D, R, S); - - output Q0; - output Q1; - - input C0; - input C1; - input CE; - input D; - tri0 GSR = glbl.GSR; - input R; - input S; - - parameter DDR_ALIGNMENT = "NONE"; - parameter INIT_Q0 = 1'b0; - parameter INIT_Q1 = 1'b0; - parameter SRTYPE = "SYNC"; - - reg q0_out, q1_out; - reg q0_out_int, q1_out_int; - reg q0_c1_out_int, q1_c0_out_int; - - buf buf_q0 (Q0, q0_out); - buf buf_q1 (Q1, q1_out); - - - initial begin - - if ((INIT_Q0 != 1'b0) && (INIT_Q0 != 1'b1)) begin - $display("Attribute Syntax Error : The attribute INIT_Q0 on IDDR2 instance %m is set to %d. Legal values for this attribute are 0 or 1.", INIT_Q0); - $finish; - end - - if ((INIT_Q1 != 1'b0) && (INIT_Q1 != 1'b1)) begin - $display("Attribute Syntax Error : The attribute INIT_Q0 on IDDR2 instance %m is set to %d. Legal values for this attribute are 0 or 1.", INIT_Q1); - $finish; - end - - if ((DDR_ALIGNMENT != "C1") && (DDR_ALIGNMENT != "C0") && (DDR_ALIGNMENT != "NONE")) begin - $display("Attribute Syntax Error : The attribute DDR_ALIGNMENT on IDDR2 instance %m is set to %s. Legal values for this attribute are C0, C1 or NONE.", DDR_ALIGNMENT); - $finish; - end - - if ((SRTYPE != "ASYNC") && (SRTYPE != "SYNC")) begin - $display("Attribute Syntax Error : The attribute SRTYPE on IDDR2 instance %m is set to %s. Legal values for this attribute are ASYNC or SYNC.", SRTYPE); - $finish; - end - - end // initial begin - - - always @(GSR or R or S) begin - - if (GSR == 1) begin - - assign q0_out_int = INIT_Q0; - assign q1_out_int = INIT_Q1; - assign q0_c1_out_int = INIT_Q0; - assign q1_c0_out_int = INIT_Q1; - - end - else begin - - deassign q0_out_int; - deassign q1_out_int; - deassign q0_c1_out_int; - deassign q1_c0_out_int; - - if (SRTYPE == "ASYNC") begin - if (R == 1) begin - assign q0_out_int = 0; - assign q1_out_int = 0; - assign q0_c1_out_int = 0; - assign q1_c0_out_int = 0; - end - else if (R == 0 && S == 1) begin - assign q0_out_int = 1; - assign q1_out_int = 1; - assign q0_c1_out_int = 1; - assign q1_c0_out_int = 1; - end - end // if (SRTYPE == "ASYNC") - - end // if (GSR == 1'b0) - - end // always @ (GSR or R or S) - - - always @(posedge C0) begin - if (R == 1 && SRTYPE == "SYNC") begin - q0_out_int <= 0; - q1_c0_out_int <= 0; - end - else if (R == 0 && S == 1 && SRTYPE == "SYNC") begin - q0_out_int <= 1; - q1_c0_out_int <= 1; - end - else if (CE == 1 && R == 0 && S == 0) begin - q0_out_int <= D; - q1_c0_out_int <= q1_out_int; - end - end // always @ (posedge C0) - - - always @(posedge C1) begin - if (R == 1 && SRTYPE == "SYNC") begin - q1_out_int <= 0; - q0_c1_out_int <= 0; - end - else if (R == 0 && S == 1 && SRTYPE == "SYNC") begin - q1_out_int <= 1; - q0_c1_out_int <= 1; - end - else if (CE == 1 && R == 0 && S == 0) begin - q1_out_int <= D; - q0_c1_out_int <= q0_out_int; - end - end // always @ (posedge C1) - - - always @(q0_out_int or q1_out_int or q1_c0_out_int or q0_c1_out_int) begin - - case (DDR_ALIGNMENT) - "NONE" : begin - q0_out <= q0_out_int; - q1_out <= q1_out_int; - end - "C0" : begin - q0_out <= q0_out_int; - q1_out <= q1_c0_out_int; - end - "C1" : begin - q0_out <= q0_c1_out_int; - q1_out <= q1_out_int; - end - endcase // case(DDR_ALIGNMENT) - - end // always @ (q0_out_int or q1_out_int or q1_c0_out_int or q0_c1_out_int) - - - specify - - if (C0) (C0 => Q0) = (100, 100); - if (C0) (C0 => Q1) = (100, 100); - if (C1) (C1 => Q1) = (100, 100); - if (C1) (C1 => Q0) = (100, 100); - specparam PATHPULSE$ = 0; - - endspecify - -endmodule // IDDR2 - |