Explain nested interrupts.
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A higher-priority interrupt that must be serviced before completion of the current interrupt service routine (ISR). An executing ISR can set the interrupt mask register (IMR) bits to prevent being suspended by another interrupt.
Nested interrupt” is an interrupt routine which is invoked when the device is executing code while already in an interrupt routine. Nested interrupts need to be very carefully handled, as they can lead to inefficiency and instability.
Nested interrupt” is an interrupt routine which is invoked when the device is executing code while already in an interrupt routine. Nested interrupts need to be very carefully handled, as they can lead to inefficiency and instability.
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