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Which of the following can be adopted for the systems which does not contain DMA controller for data transmission?

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Which of the following can be adopted for the systems which does not contain DMA controller for data transmission?

(a) counter

(b) timer

(c) polling

(d) memory

I have been asked this question by my college professor while I was bunking the class.

My enquiry is from DMA in portion Basic Peripherals of Embedded Systems

1 Answer

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Best answer
Correct answer is (c) polling

Explanation: The polling and interrupt helps for data transmission for the systems which do not have DMA controller.

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