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[/] [pci/] [tags/] [rel_3/] [rtl/] [verilog/] [delayed_write_reg.v] - Blame information for rev 6

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1 2 mihad
//////////////////////////////////////////////////////////////////////
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////                                                              ////
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////  File name "delayed_write_reg.v"                             ////
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////                                                              ////
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////  This file is part of the "PCI bridge" project               ////
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////  http://www.opencores.org/cores/pci/                         ////
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////                                                              ////
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////  Author(s):                                                  ////
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////      - Miha Dolenc (mihad@opencores.org)                     ////
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////                                                              ////
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////  All additional information is avaliable in the README       ////
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////  file.                                                       ////
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////                                                              ////
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////                                                              ////
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//////////////////////////////////////////////////////////////////////
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////                                                              ////
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//// Copyright (C) 2001 Miha Dolenc, mihad@opencores.org          ////
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////                                                              ////
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//// This source file may be used and distributed without         ////
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//// restriction provided that this copyright statement is not    ////
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//// removed from the file and that any derivative work contains  ////
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//// the original copyright notice and the associated disclaimer. ////
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////                                                              ////
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//// This source file is free software; you can redistribute it   ////
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//// and/or modify it under the terms of the GNU Lesser General   ////
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//// Public License as published by the Free Software Foundation; ////
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//// either version 2.1 of the License, or (at your option) any   ////
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//// later version.                                               ////
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////                                                              ////
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//// This source is distributed in the hope that it will be       ////
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//// useful, but WITHOUT ANY WARRANTY; without even the implied   ////
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//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////
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//// PURPOSE.  See the GNU Lesser General Public License for more ////
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//// details.                                                     ////
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////                                                              ////
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//// You should have received a copy of the GNU Lesser General    ////
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//// Public License along with this source; if not, download it   ////
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//// from http://www.opencores.org/lgpl.shtml                     ////
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////                                                              ////
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//////////////////////////////////////////////////////////////////////
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//
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// CVS Revision History
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//
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// $Log: not supported by cvs2svn $
45 6 mihad
// Revision 1.1.1.1  2001/10/02 15:33:46  mihad
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// New project directory structure
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//
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//
49 2 mihad
 
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`include "constants.v"
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`include "timescale.v"
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module DELAYED_WRITE_REG
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(
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        reset_in,
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        req_clk_in,
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        comp_wdata_out,
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        req_we_in,
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        req_wdata_in
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);
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// system inputs
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input reset_in,
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          req_clk_in ; // request clock input
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output [31:0] comp_wdata_out ; // data output
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input req_we_in ; // write enable input
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input [31:0] req_wdata_in ; // data input - latched with posedge of req_clk_in when req_we_in is high
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reg [31:0] comp_wdata_out ;
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// write request operation
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always@(posedge req_clk_in or posedge reset_in)
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begin
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        if (reset_in)
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                comp_wdata_out <= #`FF_DELAY 32'h0000_0000 ;
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        else
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        if (req_we_in)
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                comp_wdata_out <= #`FF_DELAY req_wdata_in ;
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end
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endmodule // DELAYED_WRITE_REG

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