Here's an example Verilog code to implement a T flip-flop circuit:
module t_ff (output reg q, input t, clk, reset);
always @(posedge clk, negedge reset) begin
if (!reset) begin
q <= 1'b0;
end
else begin
if (t) begin
q <=
q;
end
end
end
endmodule
This code defines a module called “t_ff” that implements a T flip-flop. The output “q” is a registered output, which means that it is updated only on clock edges. The input “t” is the input to the flip-flop, and “clk” is the clock input. The “reset” signal resets the flip-flop to 0.
The “always @(posedge clk, negedge reset)” block is a sequential logic block that updates the “q” output based on the clock and reset signals. If the “reset” signal is low, then the flip-flop is reset to 0. Otherwise, the flip-flop behaves according to the T flip-flop truth table:
– If T is high, then the flip-flop toggles its output on the positive edge of the clock.
Note that this Verilog code assumes that the “q” output and the “t”, “clk”, and “reset” signals are all 1-bit signals. If you want to use multi-bit signals, you would need to modify the code accordingly. Additionally, this code implements a rising-edge triggered flip-flop. If you wanted to implement a falling-edge triggered flip-flop, you would need to modify the code accordingly.