Timer Programming MCQ’s

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This set of Microcontroller Multiple Choice Questions & Answers (MCQs) focuses on “Timer Programming”.

1. What is the use of the prescalar in the operation of the timer?
a) for fast calculations
b) for increasing the time delay given by the timer by decreasing its frequency of operation
c) for removing the concept the reloading of count
d) for easy counter operations

2. What modes are generally used in the operation of the timer0?
a) Normal mode
b) CTC mode
c) PWM mode
d) All of the mentioned

3. In AVR, which of the following registers are not used for programming timers?
a) TCNT
b) TCON
c) TIFR
d) None of the mentioned

4. Timer 0 can act as a counter ____________
a) if the CS02-CS00 are 110 or 111
b) if the FOC0 bit is set to 110
c) none of the mentioned
d) all of the mentioned

5. Which of the following will generate the maximum time delay?
a) f/2
b) f/4
c) f/16
d) f/32

6. We can count the pulses on the positive or the negative edge triggered pulse of the clock?
a) true
b) false
c) can’t be determined
d) depends on the circumstances

7. Which of the timer can operate in the 16 bit condition?
a) timer0
b) timer1
c) timer2
d) all of the mentioned

8. What is the difference in the operation of a normal and a CTC mode of a timer?
a) in CTC mode PWM is used
b) here serial timer is monitored
c) in CTC mode, timer counts up until contents of TCNT register becomes equal to the contents of OCR
d) none of the mentioned

9. Which pin is used for the input clock of the counter0?
a) PORTB.0
b) PORTB.1
c) PORTB.2
d) PORTB.3

10. Which resource provides the clock pulse to AVR timers if CS02-00=6?
a) internal clock of the AVR
b) external clock of the AVR
c) none of the mentioned
d) all of the mentioned

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