glbl.v

Xilinx DDR2存储器接口调试代码

//////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2005-2007 Xilinx, Inc.
// This design is confidential and proprietary of Xilinx, Inc.
// All Rights Reserved.
///////////////////////////////////////////////////////////////////////////////
//   ____  ____
//  /   /\/   /
// /___/  \  /   Vendor: Xilinx
// \   \   \/    Version: $Name: i+IP+131489 $
//  \   \        Application : MIG
//  /   /        Filename: glbl.v
// /___/   /\    Date Last Modified : $Date: 2007/09/21 15:23:17 $
// \   \  /  \   Date Created: Mon May 2 2005
//  \___\/\___\
// Device: Spartan-3/3A
// Design Name: DDR2_SDRAM
// Purpose     : Used for intializing the simulation environment.
///////////////////////////////////////////////////////////////////////////////

`timescale  1 ps / 1 ps

module glbl ();

    parameter ROC_WIDTH = 100000;
    parameter TOC_WIDTH = 0;

    wire GSR;
    wire GTS;
    wire PRLD;

    reg GSR_int;
    reg GTS_int;
    reg PRLD_int;

    assign (weak1, weak0) GSR = GSR_int;
    assign (weak1, weak0) GTS = GTS_int;
    assign (weak1, weak0) PRLD = PRLD_int;

    initial begin
	GSR_int = 1'b1;
	PRLD_int = 1'b1;
	#(ROC_WIDTH)
	GSR_int = 1'b0;
	PRLD_int = 1'b0;
    end

    initial begin
	GTS_int = 1'b1;
	#(TOC_WIDTH)
	GTS_int = 1'b0;
    end

endmodule