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Q.

The atleast number of machine cycles for which the external interrupts that are programmed level-sensitive should remain high is

A

1

B

2

C

3

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MCQ

1.

The external interrupt that has the lowest priority among the following is

A

TF0

B

TF1

C

IE1

D

NONE

Discussion

MCQ

2.

The atleast number of machine cycles for which the external interrupts that are programmed level-sensitive should remain high is

A

1

B

2

C

3

Discussion

MCQ

3.

In serial port interrupt, after the control is transferred to the interrupt service routine, the flag that is cleared is

A

RI

B

TI

C

RI and TI

D

None

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MCQ

4.

After reset, the stack pointer(SP) is initialized to the address of

A

internal ROM

B

internal RAM

C

external ROM

D

external RAM

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MCQ

5.

The flags IE0 and IE1, are automatically cleared after the control is transferred to respective vector if the interrupt is

A

level-sensitive

B

edge-sensitive

C

in serial port

D

in parallel port

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