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4 cards from this section. Quick, good the night before a test.
What does DMA stand for?
Think about how data is moved without CPU intervention.
What happens during interrupt-driven I/O?
Consider what happens when a device needs attention.
What is the main advantage of DMA over interrupt-driven I/O?
Think of how efficiently the CPU can continue working during transfers.
True or False: In burst mode DMA, the CPU can access the bus during data transfer.
Consider what happens during continuous data transfer.
You need to design a system that can efficiently handle the transfer of a 10 MB video file from a capture device to memory using DMA. Describe the setup and transfer protocol you would propose to minimize CPU interruption.
Think about structured data pathways and access management.
Given a 32-bit processor, calculate how many interrupts would occur while transferring a 20 MB file using burst mode without optimization. Describe the expected performance impact.
Reflect on memory limits and transfer sizing.
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