Subversion Repositories xge_mac

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

////                                                              ////

////  File name "tx_hold_fifo.v"                                  ////

////                                                              ////

////  This file is part of the "10GE MAC" project                 ////

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

////                                                              ////

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

////      - A. Tanguay (antanguay@opencores.org)                  ////

////                                                              ////

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

////                                                              ////

//// Copyright (C) 2008 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                     ////

////                                                              ////

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

`include "defines.v"

module tx_hold_fifo(/*AUTOARG*/

  // Outputs

  txhfifo_wfull, txhfifo_walmost_full, txhfifo_rdata,

  txhfifo_rstatus, txhfifo_rempty, txhfifo_ralmost_empty,

  // Inputs

  clk_xgmii_tx, reset_xgmii_tx_n, txhfifo_wdata, txhfifo_wstatus,

  txhfifo_wen, txhfifo_ren

  );

input         clk_xgmii_tx;

input         reset_xgmii_tx_n;

input [63:0]  txhfifo_wdata;

input [7:0]   txhfifo_wstatus;

input         txhfifo_wen;

input         txhfifo_ren;

output        txhfifo_wfull;

output        txhfifo_walmost_full;

output [63:0] txhfifo_rdata;

output [7:0]  txhfifo_rstatus;

output        txhfifo_rempty;

output        txhfifo_ralmost_empty;

generic_fifo #(

  .DWIDTH (72),

  .AWIDTH (`TX_HOLD_FIFO_AWIDTH),

  .REGISTER_READ (1),

  .EARLY_READ (1),

  .CLOCK_CROSSING (0),

  .ALMOST_EMPTY_THRESH (7),

  .ALMOST_FULL_THRESH (4),

  .MEM_TYPE (`MEM_AUTO_SMALL)

)

fifo0(

    .wclk (clk_xgmii_tx),

    .wrst_n (reset_xgmii_tx_n),

    .wen (txhfifo_wen),

    .wdata ({txhfifo_wstatus, txhfifo_wdata}),

    .wfull (txhfifo_wfull),

    .walmost_full (txhfifo_walmost_full),

    .rclk (clk_xgmii_tx),

    .rrst_n (reset_xgmii_tx_n),

    .ren (txhfifo_ren),

    .rdata ({txhfifo_rstatus, txhfifo_rdata}),

    .rempty (txhfifo_rempty),

    .ralmost_empty (txhfifo_ralmost_empty)

);

endmodule