PC/XT机中若对从片8259A写入的ICW2是70H,则该8259A芯片的IR

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问题 PC/XT机中若对从片8259A写入的ICW2是70H,则该8259A芯片的IRQ5的中断矢量存储的地址是()(注:先算类型号,再*4得到)A.75HB.280HC.300HD.1D4H

选项 A.75H
B.280H
C.300H
D.1D4H

答案 D

解析
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