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This question belongs to Electronics And Communications Engineering Microprocessors And Microcontrollers

Microprocessors and Microcontrollers

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During direct memory access (DMA), the INTR and INTA (interrupt and interrupt acknowledge) lines:

A) are never used B) are used by the DMA controller to acquire the data and address bus from the microprocessor C) are used by the I/O device to invoke an error routine if a problem occurs during DMA transfer D) are used by the DMA controller to signal the microprocessor about the end of the current data transfer

Answer & Solution

Correct Answer: Option A

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Question posted by Examveda

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