86 Family Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

86 Family Interview Questions

Questions Answers Views Company eMail

Can port 0 be used as input output port?

1154

Which bit of the flag register is set when output overflows to the sign bit?

1179

Explain jnc.?

1108

Explain db?

1107

What are the four distinct types of memory in 8051?

1743

Other than setb, clr are there any single bit instructions?

1010

What is special function registers (sfr)?

1199

Give example of bit address and byte address?

1111

Explain the architecture of 8051 microcontroller ?

998

Which 2 ports combine to form the 16 bit address for external memory access?

1232

List out addressing modes in mcs-51?

1131

What is the width of address bus?

1119

What are issues related to stack and bank 1.?

1398

What are the data pins of microprocessors? What is their use?

1019

What are the data pins of microprocessors?

1193

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Un-Answered Questions { 86 Family }

What are the different types of assemblers used?

1135

What is meant by priority of interrupt?

1170

Define microprocessor?

1304

What is the bhe signal? Explain its significance?

1417

In which T-state does the CPU sends the address o memory or I/O and the ALE signal for Demultiplexing

1536

How many i/o ports are present in the 8086?

1104

Define the jobs performed by the biu and eu in the 8086.

1251

Explain jnc.?

1108

What is the purpose of a buffer register in reference to 8085?

982

Which interrupt has highest priority in microcontroller ?

1271

The interrupt response time is determined by?

1048

What are the various interrupts in 8086?

1118

What is the significance of the control unit in the 8085?

1000

What are the interrupts of 8086?

1010

Explain sphl instruction?

1128

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