Which of the following interfacing IC is a DMA controller?

Electronics and Communication Engineering (ECE) : Microprocessors - Quiz(MCQ)

8155

8279

8253/54

8257/37

Correct Answer : Option (D) : 8257/37

Explanation : 8155 is a multipurpose programmable I/O device. 8253/54 is a programmable counter. 8279 is a keyboard/display controller and 8257/37 is a DMA controller.

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