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When the R/W bit of the status register of the DMA controller is set to 1.

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When the R/W bit of the status register of the DMA controller is set to 1.

(a) Read operation is performed

(b) Write operation is performed

(c) Read & Write operation is performed

(d) None of the mentioned

I got this question in unit test.

The origin of the question is Direct Memory Access topic in chapter Input/Output Organisation of Computer Architecture

1 Answer

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Right answer is (a) Read operation is performed

For explanation I would say: None.

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