June 12, 2021

Timer-1 MCQ’s

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This set of Embedded System Multiple Choice Questions & Answers (MCQs) focuses on “Timer-1″.

1. Which bit size determines the slowest frequency?
a) counter size
b) pre-scalar value
c) counter
d) timer

2. Which mode of the Intel 8253 timer can generate a square wave?
a) mode 1
b) mode 2
c) mode 3
d) mode 4

3. Which of the following helps in the generation of waveforms?
a) timer
b) inputs
c) outputs
d) memory

4. Which of the following is mode 0 in 8253?
a) interrupt on start count
b) interrupt for wait statement
c) interrupt on terminal count
d) no interrupt

5. Which determines the mode 1 in the Intel 8253?
a) interrupt on terminal count
b) programmable one-shot
c) rate generator
d) square wave rate generator

6. Which of the following timer is suitable for IBM PC?
a) IA-32
b) Intel 8253
c) Intel 64
d) 8051 timer

7. Which of the following is the mode 3 in the Intel timer 8253?
a) rate generator
b) hardware triggered strobe
c) square wave rate generator
d) software triggered strobe

8. Which bit size determines the maximum value of the counter-derived period?
a) counter size
b) pre-scalar value
c) bit size
d) byte size

9. Which of the following determines the rate generation?
a) divide by N
b) multiply by N
c) addition by N
d) subtraction by N

10. Which mode of 8253 can provide pulse width modulation?
a) programmable one-shot
b) square wave rate generator
c) software triggered strobe
d) hardware triggered strobe

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