Subversion Repositories ethmac10g

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

////                                                              ////

//// MODULE NAME: rxNumCounter                                    ////

////                                                              ////

//// DESCRIPTION: To count bytes have been received.              ////

////                                                              ////

////                                                              ////

//// This file is part of the 10 Gigabit Ethernet IP core project ////

////  http://www.opencores.org/projects/ethmac10g/                ////

////                                                              ////

//// AUTHOR(S):                                                   ////

//// Zheng Cao                                                    ////

////                                                              ////

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

////                                                              ////

//// Copyright (c) 2005 AUTHORS.  All rights reserved.            ////

////                                                              ////

//// 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 1.1.1.1  2006/05/31 05:59:42  Zheng Cao

// first version

//

// Revision 1.1  2005/12/25 16:43:10  Zheng Cao

// 

// 

//

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

`include "timescale.v"

`include "xgiga_define.v"

module rxNumCounter(rxclk, reset, receiving, frame_cnt);

    input rxclk;            //receive clk        

    input reset; //globe reset

    input receiving; //start to count   data field

    output[`COUNTER_WIDTH-1:0] frame_cnt;

    parameter TP =1;

    // Data counter

    // used in rxReceiveData field, 

    // this counter is used for frames whose length is larger than 64

    // Of course it also count actual bytes of frames whose length is shorter than 64.

    counter data_counter(.clk(rxclk), .reset(reset), .load(~receiving), .en(receiving), .value(frame_cnt));

    defparam data_counter.WIDTH = `COUNTER_WIDTH;

endmodule