Practice - Components of a Typical DMA Controller
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Practice Questions
Test your understanding with targeted questions
Define Direct Memory Access (DMA).
💡 Hint: Think about how devices share information with memory.
What is the role of the Data Count Register in a DMA controller?
💡 Hint: Consider what you need to know before you start transferring data.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does DMA stand for?
💡 Hint: Focus on the function it describes.
True or False: In burst transfer mode, the CPU can perform other tasks while the DMA controller is active.
💡 Hint: Think about the prioritization of bus access.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
A DMA controller is designed to handle burst transfers of large data-sized 10 MB. If the system has a 32-bit data bus, how many total transfers will be required, and how does this impact the CPU’s operation?
💡 Hint: Consider the byte-to-transfer relationship and divide accordingly.
If a system using cycle stealing mode needs to transfer data and the CPU experiences a 10% delay per byte transferred, calculate the total delay for transferring 2000 bytes. What strategies could mitigate this delay?
💡 Hint: Think about how delays accumulate during each cycle's transfer.
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