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oh/common/hdl/pulse2toggle.v
2015-11-06 11:25:05 -05:00

38 lines
579 B
Verilog

module pulse2toggle(/*AUTOARG*/
// Outputs
out,
// Inputs
clk, in, reset
);
//clocks
input clk;
input in;
output out;
//reset
input reset; //do we need this???
reg out;
wire toggle;
//if input goes high, toggle output
//note1: input can only be high for one clock cycle
//note2: be careful with clock gating
assign toggle = in ? ~out :
out;
always @ (posedge clk or posedge reset)
if(reset)
out <= 1'b0;
else
out <= toggle;
endmodule // pulse2toggle