DMA (Direct Memory Access) controller has following:

2017

DMA (Direct Memory Access) controller has following:

Answer: C. Master and slave interface both — A DMA controller must communicate with both the CPU/system bus and the I/O device. Therefore it has both master and slave interface behavior.

  1. A.

    Only master interface

  2. B.

    Only slave interface

  3. C.

    Master and slave interface both

  4. D.

    None of the above

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Correct answer: C

A DMA controller must communicate with both the CPU/system bus and the I/O device. Therefore it has both master and slave interface behavior.

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