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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):                                                  ////

////      - mihad@opencores.org                                   ////

////      - Miha Dolenc                                           ////

////                                                              ////

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

////  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    ////

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//// the original copyright notice and the associated disclaimer. ////

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//// 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.                                               ////

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//// This source is distributed in the hope that it will be       ////

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//// PURPOSE.  See the GNU Lesser General Public License for more ////

//// details.                                                     ////

////                                                              ////

//// You should have received a copy of the GNU Lesser General    ////

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

//

// CVS Revision History

//

// $Log: not supported by cvs2svn $

// Revision 1.1  2001/07/19 09:51:16  mihad

// Only delayed write storage is provided after merging delayed requests.

// All delayed reads now pass through FIFO.

//

//

`include "constants.v"

module 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 // IACK_STORAGE