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Interrupt response is defined as the time between the reception of the interrupt and the start of the user code that handles the interrupt. Interrupt response time accounts for the entire overhead involved in handling an interrupt. Typically, the processor’s context (CPU registers) is saved on the stack before the user code is executed.
Interrupt recovery is de?ned defined as the time required for the processor to return to the interrupted code or to a higher priority task if the ISR made such a task ready-to-run.
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