Question Discussion & Solution

MCQ

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

level-sensitive

edge-sensitive

in serial port

in parallel port

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MCQ

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

level-sensitive

edge-sensitive

in serial port

in parallel port

Discussion

MCQ

The step involved in POP operation is

decrement stack by 2 and store 8-bit content to address pointed to by SP

store 16-bit content to address pointed to by SP and decrement stack by 1

decrement stack by 1 and store content of top of stack to address pointed to by SP

store content of top of stack to address pointed to by SP and then decrement stack by 1

Discussion

MCQ

Which of the following is an external interrupt?

INT0(active low)

INT2(active low)

Timer0 interrupt

Timer1 interrupt

Discussion

MCQ

All the interrupts are enabled using a special function register called

interrupt priority register

interrupt register

interrupt function register

interrupt enable register

Discussion

MCQ

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

TF0

TF1

IE1

NONE

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8086 Microprocessor

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Serial Communication Unit

Segmentation

Paging

Instruction Set of 8086 8088

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category More Microprocessor Topics

Microprocessor Basics

Classification

Input Output interfacing

Microcontroller

8085 Architecture

8086 Microprocessor

Multiprocessor Configuration

Peripheral Interface

Register Set of 8051

Serial Communication Unit

Segmentation

Paging

Instruction Set of 8086 8088

Interrupt and Stack of 8051

8051 Instruction Set

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