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?

1213

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

1215

Explain jnc.?

1163

Explain db?

1149

What are the four distinct types of memory in 8051?

1792

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

1063

What is special function registers (sfr)?

1232

Give example of bit address and byte address?

1161

Explain the architecture of 8051 microcontroller ?

1054

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

1295

List out addressing modes in mcs-51?

1183

What is the width of address bus?

1169

What are issues related to stack and bank 1.?

1485

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

1060

What are the data pins of microprocessors?

1270

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Un-Answered Questions { 86 Family }

What’s a microprocessor?

1049

Explain the significance of signal?

1068

What is a locator?

1177

What are set up time & hold time constraints?

1250

How are labels named in assembly language?

1347

What is the purpose of data moving instructions? Name any two such instructions?

1097

What is 8251?

1224

What are the interrupts of 8086?

1061

Name the pin in 8086 microprocessor that is used for selecting mode of operation?

1183

How is the system clock calculated in the 8085?

1219

What is the difference between a microprocessor and a microcontroller?

1156

The answer to the above question is breaking the combinational circuit and pipelining it. What will be affected if you do this?

2889

What is the RST for the TRAP?

1446

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

1294

Indicate different machine cycles of 8085?

1184

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