Question # 1

_____ is the condiction

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CD

IR

Both a and b

None

Which are the general register.

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AX.; Accumulator

BX: base

CX: Count

All of these

Which generate an interrupt to the microprocessor after a certain interval of time.

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8251

8254

8255

8259

Which is the microprocessor launched by Rock well international.

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RPS-4

RPS-8

All of these

Which mode is used for single handshake in 8255

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Mode 0

Mode 1

Mode 2

None

Third generation micro processor is dominated by _______ micro processor.

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8 bit

4 bit

16 bit

64 bit

HR stand for.

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Hold request

Hold read

Hold register

Hold resolver

Which are the cache controller ports.

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64 bit AHB -Lite slave ports

64- bit AHB -Lite Master ports

Both a and b

None

CPU can read and write data by using.

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Control bus

Data Bus

Address bus

None

the growth of LSI technology on

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1994-1995

1971-1977

1972-1978

None

CS stand for

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Cable select

Chip select

Control select

Cable system

The _____ ddress of a memory is a 20 bit address for the 8086 microprocessor.

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Physical

Logical

Both a and b

None

Which programmable timer is used to generate timing signal

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8255

8254

8251

8259

Which is the architecture of microprocessor.

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CISC

RISC

All of these

None

The upper 8 bit are called.

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BH

AH

BL

DL

INTR it implies the ___ signal

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Interrupt request

Interrupt Right

Interrupt Rough

interrupt Reset

in linear decoding address bus of 16 -bit wide can connect only of RAM

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Address map is not contiguous

Confects occur if two of the select lines become active at the same time

If all unused address lines are not used as chip selectors then these unused lines become don't cares.

None

SP stand for

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Status pointer

Stack pointer

A and B

None

Which formula is used to calculate the number of write stall cycles.

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Reads * read miss rate* read miss penalty

write * write miss + Write buffer stalls

Memory access* cache miss rate * cache miss penalty

None

How many group of memory unit.

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three

Two

Four

One

The left side of any binary number is called.

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Least significant digit

Most significant digit

Medium significant digit

Low significant digit

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