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When interface 8237 does not have any valid pending DMA request then it is said to be in

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+1 vote
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in Microprocessor by (39.4k points)
When interface 8237 does not have any valid pending DMA request then it is said to be in

(a) active state

(b) passive state

(c) idle state

(d) none of the mentioned

This question was posed to me by my college director while I was bunking the class.

Question is from Programmable DMA Interface 8237 -2 in portion DMA, Floppy Disk and CRT Controllers of Microprocessor

1 Answer

0 votes
by (49.2k points)
Correct option is (c) idle state

Explanation: If 8237 is in idle state, then CPU may program it in this state.

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