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86 Family Interview Questions
Questions Answers Views Company eMail

What is the difference between MOV and MVI?

 15 73730

What are the functions of RIM, SIM, IN?

Pappu Sons, Wipro,

10 71772

What is the immediate addressing mode?

 13 28854

What are the different flags in 8085?

Spectra Innovations, TCS, Wipro,

24 93639

What happens during DMA transfer?

 9 27886

What do you mean by wait state? What is its need?

 2 23976

What is PSW?

DRDO,

11 52876

What is ALE? Explain the functions of ALE in 8085.

 17 153751

What is a program counter? What is its use?

 9 83972

What is an interrupt?

TCS,

13 20784

Which line will be activated when an output device require attention from CPU?

 4 13814

Give two ways of converting a two input NAND gate to an inverter ?

 2 17029

Given a circuit, draw its exact timing response?

ATS,

3254

What are set up time & hold time constraints What do they signify Which one is critical for estimating maximum clock frequency of a circuit?

AMD,

1 8905

Give a circuit to divide frequency of clock cycle by two ?

 6 14786

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Un-Answered Questions { 86 Family }

What is base segment address?

647

What is the maximum internal clock frequency of 8086?

659

List out the features of 8051 microcontroller?

731

In what is the ready pin of a microprocessor used

704

How is EPROM generally erased

667




What type of interrupt is the “trap” and what does it do?

587

explain about the characters of internal interrupts?

661

What is lst file?

680

The PCI bus is the important bus found in all the new Pentium systems because

648

With 12 mhz clock frequency how many instructions (of 1 machine cycle and 2 machine cycle) it can execute per second?

1548

Explain transmission gate-based d-latch?

664

What is an interrupt service routine in microcontroller?

591

Define crossbar switching with reference to 8086?

625

Define the types of memory used in 8085 microprocessor?

566

why 8085 processor is called an 8 bit processor?

609

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