listening listening done done negative negative delay[9:0] delay[9:0] clk clk rst rst clear clear ref ref sig sig arm arm ack ack sclk sclk start start signed_delay[31:0] signed_delay[31:0] SIGNEDDECRADIX CLK_PERIOD[31:0] CLK_PERIOD[31:0] UNSIGNEDDECRADIX CLK_HALFPERIOD CLK_HALFPERIOD DELMEAS label 128 128 255 230 230 230 ref ref true #ffff00 ref_edge ref_edge sig sig true #ffff00 sig_edge sig_edge arm arm arm_edge arm_edge ack ack ack_pulse ack_pulse negative negative delay[9:0] delay[9:0] UNSIGNEDDECRADIX listening listening done done state[3:0] state[3:0] UNSIGNEDDECRADIX