Practice Two Bus System Configuration (29.1.5.3) - Overview of DMA and Interrupt Driven I/O
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Two Bus System Configuration

Practice - Two Bus System Configuration

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define Direct Memory Access (DMA).

💡 Hint: Consider how data typically moves between devices and memory.

Question 2 Easy

What is the main difference between burst transfer mode and cycle stealing?

💡 Hint: Think about how long the CPU has to wait in each mode.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does DMA stand for?

Dedicated Memory Access
Direct Memory Access
Dynamic Memory Access

💡 Hint: Think about what DMA does.

Question 2

True or False: In burst transfer mode, the CPU remains idle until full data transfer is complete.

True
False

💡 Hint: Reflect on how long the CPU waits.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

If a DMA is transferring 4MB of data in burst mode and every transfer is 512 bytes, how many times will the CPU suspend its operations?

💡 Hint: Use basic division to find the number of transfers.

Challenge 2 Hard

Discuss how using cycle stealing can affect the overall time to complete a large data transfer compared to burst mode.

💡 Hint: Consider the trade-off between lower CPU idle time versus increased transfer duration.

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