Subversion Repositories xge_mac

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

////                                                              ////

////  File name "tx_data_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_data_fifo(/*AUTOARG*/

  // Outputs

  txdfifo_wfull, txdfifo_walmost_full, txdfifo_rdata, txdfifo_rstatus,

  txdfifo_rempty, txdfifo_ralmost_empty,

  // Inputs

  clk_xgmii_tx, clk_156m25, reset_xgmii_tx_n, reset_156m25_n,

  txdfifo_wdata, txdfifo_wstatus, txdfifo_wen, txdfifo_ren

  );

input         clk_xgmii_tx;

input         clk_156m25;

input         reset_xgmii_tx_n;

input         reset_156m25_n;

input [63:0]  txdfifo_wdata;

input [7:0]   txdfifo_wstatus;

input         txdfifo_wen;

input         txdfifo_ren;

output        txdfifo_wfull;

output        txdfifo_walmost_full;

output [63:0] txdfifo_rdata;

output [7:0]  txdfifo_rstatus;

output        txdfifo_rempty;

output        txdfifo_ralmost_empty;

generic_fifo #(

  .DWIDTH (72),

  .AWIDTH (`TX_DATA_FIFO_AWIDTH),

  .REGISTER_READ (1),

  .EARLY_READ (1),

  .CLOCK_CROSSING (1),

  .ALMOST_EMPTY_THRESH (7),

  .ALMOST_FULL_THRESH (12),

  .MEM_TYPE (`MEM_AUTO_MEDIUM)

)

fifo0(

    .wclk (clk_156m25),

    .wrst_n (reset_156m25_n),

    .wen (txdfifo_wen),

    .wdata ({txdfifo_wstatus, txdfifo_wdata}),

    .wfull (txdfifo_wfull),

    .walmost_full (txdfifo_walmost_full),

    .rclk (clk_xgmii_tx),

    .rrst_n (reset_xgmii_tx_n),

    .ren (txdfifo_ren),

    .rdata ({txdfifo_rstatus, txdfifo_rdata}),

    .rempty (txdfifo_rempty),

    .ralmost_empty (txdfifo_ralmost_empty)

);

endmodule