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There are _______ general purpose registers in 8085 processor

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In an 8085 microprocessor, which one of the following instructions changes the content of the accumulator?

MOV B, M

PCHL

RNZ

SBI BEH

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The program counter (PC) in a micro-processor:

counts the number of programs being executed by the microprocessor

counts the number of instructions being executed by the microprocessor

counts the number of interrupts handled by the microprocessor

keeps the address of the next instruction to be fetched

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A bus connected between the CPU and the main memory that permits transfer of information between main memory and the CPU is known as

DMA bus

Memory bus

Address bus

Control bus

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Which of the following is true about Control and status signals?

These signals are used to identify the nature of operation.

There are 3 control signal and 3 status signals.

Three status signals are IO/M, S0 & S1.

All of the above

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The status flag that is available in microprocessor 8085, but not available in micro-controller 8051 is:

Carry flag

Overflow flag

Auxiliary flag

Zero flag

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Classification

Input Output interfacing

Microcontroller

8085 Architecture

8086 Microprocessor

Multiprocessor Configuration

Peripheral Interface

Register Set of 8051

Serial Communication Unit

Segmentation

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Instruction Set of 8086 8088

Interrupt and Stack of 8051

8051 Instruction Set

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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

Report Error

Community Discussion

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