Aspire Faculty ID #17496 · Topic: UGC NET Computer Science August 2024 (Paper II) · Just now
UGC NET Computer Science August 2024 (Paper II)

Arrange the given steps required for a Direct Memory Access (DMA) transfer in the correct order.

(A) Initiate DMA transfer request
(B) Transfer data directly between peripheral and memory
(C) Processor grants DMA control over the system bus
(D) DMA controller completes data transfer and signals completion


Solution

DMA transfer sequence:


Device initiates DMA request


CPU grants bus control to DMA controller


DMA transfers data between memory and device


DMA signals completion


Order:


A → C → B → D

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