58 lines
1020 B
Coq
58 lines
1020 B
Coq
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
Copyright (c) 2020 - 2023 Wuhan University of Technology <295054118@whut.edu.cn>
|
||
|
|
|
||
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
you may not use this file except in compliance with the License.
|
||
|
|
You may obtain a copy of the License at
|
||
|
|
|
||
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
|
||
|
|
Unless required by applicable law or agreed to in writing, software
|
||
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
See the License for the specific language governing permissions and
|
||
|
|
limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
`timescale 1 ns / 1 ps
|
||
|
|
|
||
|
|
module gen_dffr # (
|
||
|
|
parameter DW = 32,
|
||
|
|
parameter rstValue = {DW{1'b0}}
|
||
|
|
)
|
||
|
|
(
|
||
|
|
|
||
|
|
input [DW-1:0] dnxt,
|
||
|
|
output [DW-1:0] qout,
|
||
|
|
|
||
|
|
input CLK,
|
||
|
|
input RSTn
|
||
|
|
);
|
||
|
|
|
||
|
|
reg [DW-1:0] qout_r;
|
||
|
|
|
||
|
|
always @(posedge CLK or negedge RSTn) begin
|
||
|
|
if ( ~RSTn )
|
||
|
|
qout_r <= #1 rstValue;
|
||
|
|
else
|
||
|
|
qout_r <= #1 dnxt;
|
||
|
|
end
|
||
|
|
|
||
|
|
assign qout = qout_r;
|
||
|
|
|
||
|
|
endmodule
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|