Verilog
module dff ( d, clk, q);
input d, clk ;
output q;
wire d, clk;
reg q ;
always @(posedge clk)
q = d ;
endmodule
module dff ( d, clk, q);
input d, clk ;
output q;
wire d, clk;
reg q ;
always @(posedge clk)
q = d ;
specify
$setup (d, posedge clk, set);
$hold (posedge clk, d, hold);
endspecify
endmodule
Functionality
Functionality and Timing
Synthesis Simulation
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