Explore topic-wise MCQs in Avr Microcontroller.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Avr Microcontroller knowledge and support exam preparation. Choose a topic below to get started.

1.

What will happen in that condition, if an interrupt occurs while the microcontroller is serving any other interrupt?

A. both the interrupts will be handled simultaneously
B. the interrupt which is being done first will be served first
C. the interrupt that is more priority in the interrupt vector table will be served first
D. the interrupt having low priority in the interrupt vector table will be served first
Answer» D. the interrupt having low priority in the interrupt vector table will be served first
Discussion
2.

Why RETI instruction be the last instruction of ISR?

A. because it returns with carry
B. because it returns to the main program with all the flags of the SREG raised
C. because it returns to the main program where interrupt is generated and set the global interrupt enable bit in SREG
D. none of the mentioned
Answer» D. none of the mentioned
Discussion