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4 cards from this section. Quick, good the night before a test.
What is an interrupt, and why is it important?
Think about the ability of the CPU to handle multiple tasks.
What is the purpose of the Interrupt Service Routine (ISR)?
It starts with 'S' and involves handling something.
What does an interrupt signal indicate?
Think about what interrupts are meant to do in the first place.
True or False: The CPU will immediately service any incoming interrupt.
Consider the order of operations.
Design a simple interrupt handling mechanism for a device in a system where both software and hardware polling are used for identifying interrupts. Describe how conflicts are resolved.
Think about how you would visualize both methods in tandem.
Imagine a scenario where multiple devices have sent interrupts simultaneously. How would you design a follow-up ISR that allows the CPU to manage these without missing any?
Consider how to keep track of multiple requests in an orderly manner.
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