Practice Dma Controller (13.14.4) - Microprocessors - Part D - Digital Electronics - Vol 2
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DMA Controller

Practice - DMA Controller

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does DMA stand for?

💡 Hint: Think about the function it enables between devices and memory.

Question 2 Easy

Name one advantage of using a DMA controller.

💡 Hint: Consider what responsibilities the CPU has during data transfer.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary purpose of a DMA controller?

A) To perform calculations.
B) To manage data transfers between I/O devices and memory.
C) To regulate CPU clock speed.

💡 Hint: Think about the main function we discussed.

Question 2

True or False: DMA controllers can only work with one I/O device at a time.

True
False

💡 Hint: Reflect on the features of the Intel 8257 we talked about.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Propose a real-time application scenario that would benefit substantially from the implementation of a DMA controller. Explain the implications of using DMA in your scenario.

💡 Hint: Think of areas where continuous data flow is critical.

Challenge 2 Hard

Critically evaluate how the use of DMA can introduce complexity in a system versus using CPU for all data transfers. Discuss both advantages and disadvantages.

💡 Hint: Consider the trade-offs between speed and management overhead.

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Reference links

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