IO设备vhdl语言1234556778892341-IO equipment VHDL language 1234556778892341

东西南北两向交通灯，分有红黄绿三色，东西为主干道59秒倒计时，南北为辅道34秒倒计时，绿灯变黄灯时黄灯闪3秒跳转为红灯-Two traffic lights to the west, south, divided into red green and yellow three-color, 59 seconds countdown thing for the main road, north-south secondary road 34 seconds countdown, when the

西南交大计算机组成原理实验 第五次实验的代码。。。实验室仿真通过-Southwest jiaotong university computer principle experiment fifth experiment code... The laboratory simulation through the