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
|
// $Header: /devl/xcs/repo/env/Databases/CAEInterfaces/verunilibs/data/unisims/SRLC16E.v,v 1.6.158.1 2007/03/09 18:13:20 patrickp Exp $
///////////////////////////////////////////////////////////////////////////////
// Copyright (c) 1995/2004 Xilinx, Inc.
// All Right Reserved.
///////////////////////////////////////////////////////////////////////////////
// ____ ____
// / /\/ /
// /___/ \ / Vendor : Xilinx
// \ \ \/ Version : 8.1i (I.13)
// \ \ Description : Xilinx Functional Simulation Library Component
// / / 16-Bit Shift Register Look-Up-Table with Carry and Clock Enable
// /___/ /\ Filename : SRLC16E.v
// \ \ / \ Timestamp : Thu Mar 25 16:43:40 PST 2004
// \___\/\___\
//
// Revision:
// 03/23/04 - Initial version.
// End Revision
`timescale 1 ps / 1 ps
module SRLC16E (Q, Q15, A0, A1, A2, A3, CE, CLK, D);
parameter INIT = 16'h0000;
output Q, Q15;
input A0, A1, A2, A3, CE, CLK, D;
reg [15:0] data;
wire [3:0] addr;
wire q_int;
buf b_a3 (addr[3], A3);
buf b_a2 (addr[2], A2);
buf b_a1 (addr[1], A1);
buf b_a0 (addr[0], A0);
buf b_q_int (q_int, data[addr]);
buf b_q (Q, q_int);
buf b_q15_int (q15_int, data[15]);
buf b_q15 (Q15, q15_int);
initial
begin
assign data = INIT;
while (CLK === 1'b1 || CLK===1'bX)
#10;
deassign data;
end
always @(posedge CLK) begin
if (CE == 1'b1) begin
{data[15:0]} <= #100 {data[14:0], D};
end
end
endmodule
|