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Q.

If the external interrupt sources control the flags IE0 and IE1, then the interrupt programmed is

A

level-sensitive

B

edge-sensitive

C

in serial port

D

in parallel port

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Similar Questions

MCQ

1.

The 8051 stack is

A

auto-decrement during PUSH operations

B

auto-increment during POP operations

C

auto-decrement during POP operations

D

auto-increment during PUSH operations

Discussion

MCQ

2.

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

A

internal ROM

B

internal RAM

C

external ROM

D

external RAM

Discussion

MCQ

3.

If the external interrupt sources control the flags IE0 and IE1, then the interrupt programmed is

A

level-sensitive

B

edge-sensitive

C

in serial port

D

in parallel port

Discussion

MCQ

4.

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

Discussion

MCQ

5.

Among the five interrupts generated by 8051, the lowest priority is given to the interrupt

A

IE0

B

TF1

C

TF0

D

RI

Discussion

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