微机原理与接口技术实验 关于I/O地址译码实验

满足以下要求⑴、当选中地址2A0H时，LED灯亮，并延时；

⑵、当选中地址2A8H时，LED灯暗，并延时；

⑶、若有键按下，程序退出；否则上述过程周 而复始下去；

-Interface I/O address decoding experiments 鈶? when elected to the address 2A0H, LED lights, and delay　鈶? elected when the address 2A8H, LED lights dim, and delay　鈶? if any key is pressed, the program exits　Otherwise, the process cycle continues