Exam Details

Subject Micro Controllers
Paper
Exam / Course B.Tech. VIEP- Electrical Engineering III (BTCSVI/BTECVI/BTELVI)
Department School of Engineering & Technology (SOET)
Organization indira gandhi national open university
Position
Exam Date June, 2016
City, State new delhi,


Question Paper

How are embedded microcontrollers different from embedding microprocessors Explain with technical justification and application.

Explain RISC and CISC. Which one is most suited to Intel-51 microcontroller and why?

What is Special Function Register of 51 microcontroller List all the SFRs and explain SBUF, IP and PCON.

Describe and draw the architecture of Intel-51, 8-bit microcontroller.

Draw and explain 8051 connection to ADC 0804 with self-checking mode.

Draw and explain 8051 connection to external RAM (8K x 8).

Draw a schematic diagram of 8051 interfaced with unipolar stepper motor. Give reasons why one needs driver IC or circuit for interfacing a stepper motor with 8051.

Assuming that XTAL 11·0592 MHz, write a program to generate a square wave of 2 kHz frequency on pin P1.5.

5. Answer the following questions

What is the function of ALE signal?

Why are pull-up registers necessary with port P0 in 8051 microcontroller?

What is the function of SMOD bit in TCON SFR?

What is the function of GATE bit in TMOD SFR?

Write the instruction to select register bank 2.

Explain keyboard interfacing with 8051 and also draw a flow chart for detection and identification of key activation.

Describe the interfacing of 8051 with a DC motor and PWM.

Explain timer flag interrupt, serial port interrupt and external interrupts with examples.

Explain byte level and bit level logical operations with examples.

Explain the following with respect to 8051 microcontroller interrupt:

Priority level of various interrupts with their vector addresses.

Explain with an example how their priority is altered.

Write short notes on the following SFRs

TCON

SCON

Differentiate ADDC and SUB B instructions. List the precautions to be taken for both instructions during the program.

List the JUMP and CALL instructions. Describe conditional JUMP instruction.

10.(a) What is the function of a stack in 8051 Write an 8051 program to swap the contents of registers R7 and R6 in register bank 0.

What is the necessity of providing 4 banks of general purpose registers R0 to R7 in 8051 How do you switch over from bank 1 to bank


Departments

  • Centre for Corporate Education, Training & Consultancy (CCETC)
  • Centre for Corporate Education, Training & Consultancy (CCETC)
  • National Centre for Disability Studies (NCDS)
  • School of Agriculture (SOA)
  • School of Computer and Information Sciences (SOCIS)
  • School of Continuing Education (SOCE)
  • School of Education (SOE)
  • School of Engineering & Technology (SOET)
  • School of Extension and Development Studies (SOEDS)
  • School of Foreign Languages (SOFL)
  • School of Gender Development Studies(SOGDS)
  • School of Health Science (SOHS)
  • School of Humanities (SOH)
  • School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
  • School of Journalism and New Media Studies (SOJNMS)
  • School of Law (SOL)
  • School of Management Studies (SOMS)
  • School of Performing Arts and Visual Arts (SOPVA)
  • School of Performing Arts and Visual Arts(SOPVA)
  • School of Sciences (SOS)
  • School of Social Sciences (SOSS)
  • School of Social Work (SOSW)
  • School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
  • School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
  • School of Translation Studies and Training (SOTST)
  • School of Vocational Education and Training (SOVET)
  • Staff Training & Research in Distance Education (STRIDE)

Subjects

  • Active Filter Design
  • Advanced Control System
  • Advanced Power Electronics
  • Applied Electromagnetics
  • Basics Of Electrical Engineering
  • Computer Process Control
  • Control System
  • Digital Electronics
  • Electric Energy Utilization
  • Electrical And Electronics Engineering Materials
  • Electrical Instrumentation
  • Electrical Machine - I
  • Electrical Machines - Ii
  • Electrical Machines And Electronics
  • Electrical Measurements And Measuring Instruments
  • Electro Mechanical Energy Conversion - I
  • Electro-Mechanical Energy Conversion - Ii
  • Electro-Mechanical Energy Conversion-Iii
  • Electromagnetic Theory
  • Energy Auditing And Analysis
  • High Voltage Engineering
  • Industrial Drives
  • Micro Controllers
  • Microprocessor And Applications
  • Network Theory
  • Power Quality Issues And Remedial Measures
  • Power System
  • Power System - I
  • Stochastic Control Systems
  • Switchgear And Protection