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/****************************************************************************************
 MODULE:                Sub Level Program Counter Block

 FILE NAME:     pc.v
 VERSION:       1.0
 DATE:          September 28th, 2001
 AUTHOR:                Hossein Amidi
 COMPANY:       California Unique Electrical Co.
 CODE TYPE:     Register Transfer Level

 Instantiations:
 
 DESCRIPTION:
 Sub Level RTL Program Counter block

 Hossein Amidi
 (C) September 2001
 California Unique Electric

***************************************************************************************/
 
`timescale 1ns / 1ps

module PC (     // Input
                                clock,
                                reset,
                                PCInEn,
                                PCDataIn,
                                // Output
                                PCDataOut
                                );

// Parameter
parameter AddrWidth = 24;

// Inputs
input clock;
input reset;
input PCInEn;
input [AddrWidth - 1 : 0] PCDataIn;

// Outputs
output [AddrWidth - 1 : 0] PCDataOut;

// Signal Declerations
reg [AddrWidth - 1 : 0] PCDataOut;


// Main Block
always @ (posedge reset or negedge clock)
begin
        if(reset == 1'b1)
                PCDataOut <= 24'h000;
        else
        if (PCInEn == 1'b1)
        PCDataOut <= PCDataIn;
        else
        PCDataOut <= PCDataOut;
end
endmodule