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Which of the following forces a standard service routine?(a) READY interrupt(b) IRQA interrupt(c) NMI(d) software interruptThis question was addressed to me in quiz.Query is from Fast Interrupts topic in chapter Interrupts and Exceptions of Embedded Systems

Answer»

The correct answer is (b) IRQA interrupt

Easy explanation: The SCI timer is USED to generate the two instruction fast interrupt which increments the register R1 that acts as a simple counter which times the period between the events. The events itself GENERATES an IRQA interrupt, that FORCES the service ROUTINE.



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