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00000AE305121906

Pages: 2

Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Fifth semester B.Tech degree examinations (S) September 2020

Course Code: AE305
Course Name: MICROPROCESSORS & MICROCONTROLLERS

PARTA
Answer any two full questions, each carries 15 marks.

Discuss the usage of following assembler directives in 8086.

i) ASSUME _ ii) DB 11) EQU in 8086.

Define procedures and macros.

Define interrupt. What is ISR and how it is handled?

Explain various configuration modes supported by 8086.

Explain various addressing modes of 8086 with examples.

Write a short note on stack operations.

Explain the concept of multiplexed address and data bus in 8086.

Explain 8086 maximum mode operation with memory write timing diagram.
PART ‏تا‎

Answer any two full questions, each carries 15 marks.

With the help of block diagram explain 8087 numeric processor architecture.

Explain the status word register of 8087.

Explain memory address decoding with an example.

Describe the concept of branch prediction.

List the features of Pentium processor.

Explain the physical address formation in real mode of 80386.

Explain the Memory Management Unit in 80386 microprocessors.
PART C

Answer any two full questions, each carries20 marks.
Describe the register set and PSW register of 8051.
Explain data transfer, arithmetic and branching instructions of 8051 with

examples.

Duration: 3 Hours

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