Is there a specific way in which DMA might ease the system's concurrent nature? Explain how it complicates hardware design.

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter6: System Integration And Performance
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Is there a specific way in which DMA might ease the system's concurrent nature? Explain how it complicates hardware design.

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Most computers include a capability called "direct access to memory" that enables certain hardware submodules to access the system's reading and writing memory.

DMA enhances device concurrency when the DMA device transports data over the system or memory buses by allowing the CPU to undertake a job.

As the DMA controller must be integrated into the system and the system must let a bus master to serve as the DMA controller, the hardware design is complicated.

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