1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
//////////////////////////////////////////////////////////////////////
//// ////
//// 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)
.MEM_TYPE (`MEM_AUTO_XILINX)
)
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
|