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The register that holds the current memory address is

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in Microprocessor by (39.4k points)
The register that holds the current memory address is

(a) current word register

(b) current address register

(c) base address register

(d) command register

This question was addressed to me during an online exam.

This key question is from Programmable DMA Interface 8237 -1 topic in division DMA, Floppy Disk and CRT Controllers of Microprocessor

1 Answer

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by (49.2k points)
The correct option is (b) current address register

To explain I would say: The current address register holds the current memory address. The current address register is accessed during the DMA transfer.

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