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oh/stdlib/hdl/oh_sdffsq.v
2021-07-29 11:22:25 -04:00

25 lines
832 B
Verilog

//#############################################################################
//# Function: Positive edge-triggered static D-type flop-flop with async #
//# active low preset and scan input. #
//# Copyright: OH Project Authors. ALl rights Reserved. #
//# License: MIT (see LICENSE file in OH repository) #
//#############################################################################
module oh_sdffsq #(parameter DW = 1) // array width
(
input [DW-1:0] d,
input [DW-1:0] si,
input [DW-1:0] se,
input [DW-1:0] clk,
input [DW-1:0] nset,
output reg [DW-1:0] q
);
always @ (posedge clk or negedge nset)
if(!nset)
q <= {DW{1'b1}};
else
q <= se ? si : d;
endmodule