| 11. |
Which of the following is an external interrupt?
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Answer:
Option (a) |
| 12. |
The interrupts, INT0(active low) and INT1(active low) are processed internally by flags
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Answer:
Option (a) |
| 13. |
The flags IE0 and IE1, are automatically cleared after the control is transferred to respective vector if the interrupt is
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Answer:
Option (b) |
| 14. |
If the external interrupt sources control the flags IE0 and IE1, then the interrupt programmed is
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Answer:
Option (a) |
| 15. |
The pulses at T0 or T1 pin are counted in
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Answer:
Option (b) |
| 16. |
In timer mode, the oscillator clock is divided by a prescalar
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Answer:
Option (d) |
| 17. |
The serial port interrupt is generated if
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Answer:
Option (c) |
| 18. |
In serial port interrupt, after the control is transferred to the interrupt service routine, the flag that is cleared is
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Answer:
Option (d) |
| 19. |
The atleast number of machine cycles for which the external interrupts that are programmed level-sensitive should remain high is
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Answer:
Option (b) |
| 20. |
If the external interrupts are programmed edge sensitive, then they should remain high for atleast
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Answer:
Option (c) |