Microcontroller Interrupts and ADC Quiz

What is the main advantage of using interrupts over polling in microcontrollers?

• Polling is more efficient than interrupts.

• Polling checks all devices in a round-robin fashion.

• Interrupts allow prioritization of device servicing.

• Interrupts can ignore devices for service.

Which of the following is NOT a source of interrupt in PIC microcontrollers?

• Timer Interrupts

• External Interrupts

• Analog Comparator Interrupt

• Digital Signal Interrupt

What does ISR stand for in the context of interrupts?

• Integrated Service Routine

• Interrupt Service Routine

• Immediate Service Response

• Interrupt Signal Register

Which register is responsible for enabling and disabling interrupts globally?

• RCON

• ADCON0

• INTCON

• PIR1

What type of interrupt is generated by external hardware?

• Timer Interrupt

• Software Interrupt

• Hardware Interrupt

• Polling Interrupt

In PIC microcontrollers, what does the GIE bit control?

• General Input Enable

• Global Interrupt Enable

• Global Input Enable

• General Interrupt Enable

What is the purpose of the ADC in a microcontroller?

• To amplify signals

• To convert analog signals to digital

• To convert digital signals to analog

• To filter signals

Which of the following is a characteristic of polling?

• It continuously checks the status of devices.

• It can assign priority to devices.

• It is more efficient than interrupts.

• It interrupts the current process immediately.

What does the A/D Result Format select bit (ADFM) control?

• The justification of the A/D result

• The speed of conversion

• The number of channels

• The reference voltage

Which instruction is used to enable the Timer0 interrupt?

• INTCONbits.PEIE = 1

• INTCONbits.GIE = 1

• INTCONbits.TMR0IF = 1

• INTCONbits.TMR0IE = 1