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//////////////////////////////////////////////////////////////////////

////                                                              ////

////  File name "delayed_write_reg.v"                             ////

////                                                              ////

////  This file is part of the "PCI bridge" project               ////

////  http://www.opencores.org/cores/pci/                         ////

////                                                              ////

////  Author(s):                                                  ////

////      - Miha Dolenc (mihad@opencores.org)                     ////

////                                                              ////

////  All additional information is avaliable in the README       ////

////  file.                                                       ////

////                                                              ////

////                                                              ////

//////////////////////////////////////////////////////////////////////

////                                                              ////

//// Copyright (C) 2001 Miha Dolenc, mihad@opencores.org          ////

////                                                              ////

//// 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: not supported by cvs2svn $

// Revision 1.3  2002/02/01 15:25:12  mihad

// Repaired a few bugs, updated specification, added test bench files and design document

//

// Revision 1.2  2001/10/05 08:14:28  mihad

// Updated all files with inclusion of timescale file for simulation purposes.

//

// Revision 1.1.1.1  2001/10/02 15:33:46  mihad

// New project directory structure

//

//

`include "pci_constants.v"

// synopsys translate_off

`include "timescale.v"

// synopsys translate_on

module pci_delayed_write_reg

(

        reset_in,

        req_clk_in,

        comp_wdata_out,

        req_we_in,

        req_wdata_in

);

// system inputs

input reset_in,

          req_clk_in ; // request clock input

output [31:0] comp_wdata_out ; // data output

input req_we_in ; // write enable input

input [31:0] req_wdata_in ; // data input - latched with posedge of req_clk_in when req_we_in is high

reg [31:0] comp_wdata_out ;

// write request operation

always@(posedge req_clk_in or posedge reset_in)

begin

        if (reset_in)

                comp_wdata_out <= #`FF_DELAY 32'h0000_0000 ;

        else

        if (req_we_in)

                comp_wdata_out <= #`FF_DELAY req_wdata_in ;

end

endmodule // DELAYED_WRITE_REG