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The 8257 is able to accomplish the operation of

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in Microprocessor by (39.4k points)
The 8257 is able to accomplish the operation of

(a) verifying DMA operation

(b) write operation

(c) read operation

(d) all of the mentioned

This question was posed to me during a job interview.

I want to ask this question from DMA Transfers and Operations topic in chapter DMA, Floppy Disk and CRT Controllers of Microprocessor

1 Answer

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by (49.2k points)
The correct answer is (d) all of the mentioned

Easy explanation: The 8257 can accomplish three types of operations and they are

i) verify DMA operation

ii) write operation

iii) read operation.

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