Question

1. Discuss DMA with the help of block diagram

Answer 1

Explanation:

DMA controller obtains access to system bus as in burst mode; transfers one byte of data and returns the control of the system bus to CPU. It continually issues requests using Bus Request (BR) signals, transferring one byte of data per request, until it has transferred its entire block of data. (steals one CPU cycle).

Answer 2

Answer:

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