Practice - Processing During DMA Transfer
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Practice Questions
Test your understanding with targeted questions
Define DMA.
💡 Hint: Think about how devices transfer data without needing the CPU.
What happens in burst transfer mode?
💡 Hint: Consider how that impacts CPU waiting time.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is one of the primary benefits of using DMA over traditional interrupt-driven methods?
💡 Hint: Think about whether the CPU needs to manage tasks during the data transfers.
True or False: In DMA cycle stealing mode, the CPU can work during data transfers.
💡 Hint: Consider the operating model of both DMA modes.
1 more question available
Challenge Problems
Push your limits with advanced challenges
You need to transfer a 10 MB file using DMA configured with a 32-bit data bus. If the bus can handle 256 KB per burst transfer, calculate how many total transfers are necessary and how long the CPU might get interrupted.
💡 Hint: Break down the total size into manageable blocks based on the bus capabilities.
Consider a scenario in which the DMA controller must interface with both high-speed and low-speed devices. How technology might ensure optimal transfer efficiency? Discuss solution approach.
💡 Hint: Think about how the controller can manage demands from both types of devices to boost efficiency.
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