Dear students,
PLease find the important questions for unit_test_2
1.
What is bus stealing?
2.
List the modes of 8255
3.
List the features of memory mapped
I/O.
4.
What is key debouncing?
5.
Define 2 key lock out and N-key rollover
6.
What is resolution in
ADC?
7. Compare
parallel and serial communication
8. What
are the steps to interface peripherals to 8086
9.
List the Timer modes
10. What
is RTS and CTS?
Part B (2*15 = 30
Marks)
11. Explain
the operation and modes of 8255 with necessary
(OR)
12. Explain the operation and modes of 8253
Timer
13.
Discuss about the block diagram and
control registers of 8251 USART.
(OR)
14. Explain how ADC
and DAC are interfaced with 8086 with suitable assembly language program.
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