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问题详情

下列对OUT指令的描述中,不正确的是( )。

A、实现从端口中读出数据

B、能直接访问的端口范围是0~255

C、只能用DX用作间接寻址的端口

D、能访问的端口为64KB

时间：2021-07-17 23:47 关键词：能源与动力工程专升本火电厂微机监控 2019级第三学期期末考试

答案解析

A

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