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[/] [freq_div/] [trunk/] [rtl/] [even.v] - Rev 3
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`include "defines.v" module even(clk, out, P, reset, not_zero, enable); input clk; output out; input [`SIZE-1:0] P; input reset; input not_zero; input enable; reg [`SIZE-1:0] counter; reg out_counter; wire [`SIZE-1:0] div_2; assign out = (clk & !not_zero) | (out_counter & not_zero); assign div_2 = {1'b0, P[`SIZE-1:1]}; always @(posedge reset or posedge clk) begin if(reset) begin counter <= 1; out_counter <= 1; end else if(enable) begin if(counter == 1) begin counter <= div_2; out_counter <= ~out_counter; end else begin counter <= counter-1; end end end endmodule //even
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