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IOaddress
- 掌握I/O地址译码电路的工作原理 当选中地址2A0H时,LED灯亮,并延时 当选中地址2A8H时,LED灯暗,并延时; -Master I/O address decoding circuit works when elected to the address 2A0H, LED lights, and when the delay was elected in the address 2A8H, LED lights dimmed, and the delay