Practice Factors Affecting Latency (9.6.1) - Interrupt Mechanisms

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6 sample questions

Question 1.
What is interrupt latency?
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Think about the time delay involved.
Question 2.
Name one factor that affects interrupt latency.
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Consider what has to happen before the ISR can execute.
3Question 3.
What is the primary concern regarding interrupt latency?
- Enhancing processing speed
- Minimizing response time
- Increasing code complexity
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Think about what quick response means in terms of timing.
4Question 4.
True or False: A lower processor state time results in higher interrupt latency.
- True
- False
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Consider the relationship between saving state and timing.
Question 5.
Consider a system with a processor state save time of 5 microseconds and an ISR setup time of 3 microseconds. Calculate the total interrupt latency.
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Add together the individual components contributing to latency.
Question 6.
Discuss the consequences of delaying ISR execution in an environment where rapid data signal processing is essential, such as audio processing.
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Think about real-time audio processing needs.

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