Annamalai University 2007 Diploma Embedded Systems and Applications MICROCONTROLLERS AND APPLICATIONS - Question Paper

Register Number: 5404

Name of the Candidate:

DIPLOMA EXAMINATION, 2007

(EMBEDDED SYSTEMS AND APPLCIATIONS)

(PAPER-I)

110. MICROCONTROLLERS AND APPLICATIONS

Dec] [Time : three Hours
Maximum : 100 Marks

ans 5 ques.
All ques. carry equal marks

1. a) elaborate the differences ranging from microprocessor and microcontroller? (4)
b)Draw the architecture of 8051 microcontroller and discuss the functions of every unit. (16)
2.a)Draw the basic memory structure of 8051 microcontroller and discuss the internal program memory and data memory with relevant diagrams. (12)
b)Write an 8051 assembly language program to add 16 bit numbers. (8)
3.a) discuss the various kinds of Special Function Registers available in 8051 microcontroller? (10)
b)Explain the Boolean Variable Manipulation Instruction in 8051 microcontroller. (10)
4.What do you mean by the term addressing modes? elaborate the various addressing modes supported by 8051 microcontroller? discuss. (20)
5.a) What is an interrupt? discuss the various kinds of interrupts in 8096 microcontroller. (8)
b)Explain the various kinds of addressing modes available in 8096 microcontroller.(12)
6.a) discuss the expanded mode with 8-bit multiplexed bus in 8096 microcontroller. (8)
b)Explain the general purpose I/O ports 8096 microcontroller. (12)
7.a)Explain the Pulse Width Modulated Output in 8096 microcontroller with neat diagram. (10)
b)Explain the Timer one operation of 8096 microcontroller with a neat diagram. (10)
8.a)What is difference ranging from open and closed loop control systems?(5)
b)Explain how a traffic signal controller can be interfaced with 8051 microcontroller with flow chart (15)
9.Explain how a stepper motor can be interfaced with 8051 microcontroller with neat circuit diagram. (20)
10.Explain how speed of the DC Motor can be controlled by 8051 microcontroller with a neat interfacing diagram. (20)

Earning:   Approval pending.