Question: 4. A system has a 40MHz processor. It needs to process audio signals with a 40000Hz interrupt. (a) How many cycles are between two interrupts?

4. A system has a 40MHz processor. It needs to process audio signals with a 40000Hz interrupt.

(a) How many cycles are between two interrupts?

(b) Assume 20 cycles are needed for switching context. What is the percentage of time for switching context?

(c) Assume 380 cycles are needed for the ISR. What is the percentage of time in total for processing an interrupt?

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