clk clk reset reset set set online online C_more C_more M_more M_more PQc PQc PQm PQm C_noCar C_noCar M_noCar M_noCar out_num[3:0] out_num[3:0] R_light R_light G_light G_light Y_light Y_light R_light_c R_light_c G_light_c G_light_c Y_light_c Y_light_c sec2 sec2