要对可编程接口芯片进行读写操作的必要条件是(),只有满足该条件后,才能使该接口芯片进入电路工作状态,实现数据的输入/输出。
A.CE=L
B.WR=L
C.RD=L
D.WR=L或RD=L
正确答案是A
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