Exam Details
| Subject | microcontroller | |
| Paper | ||
| Exam / Course | b.arch | |
| Department | ||
| Organization | Visvesvaraya Technological University | |
| Position | ||
| Exam Date | 2018 | |
| City, State | karnataka, belagavi |
Question Paper
Model Question Paper-I with effect from 2017-18
15EE52
Fifth Semester B.E.(CBCS) Examination
Microcontroller
(Core Course, E&EE)
Time: 3 Hrs Max.Marks: 80
Note: Answer any FIVE full questions, choosing at least ONE question from each module.
Module-1
1. What is microcontroller? List out the difference between CISC and RISC
(06 Marks)
Explain the 8051 block diagram and its features. (06 Marks)
Explain the PSW Register. (04 Marks)
OR
2. With the help of neat diagram, explain how to interface external 64Kbytes RAM memory with 8051. (06 Marks)
Explain the following addressing modes with an examples.
Indirect Addressing Mode ii) Indexed Addressing Mode
iii) Direct Addressing Mode. (06 Marks)
(c)Explain PUSH and POP instruction with an example. (06 Marks)
Module-2
3. List out and explain different assembler directives used in an ALP. (06 Marks)
Explain the following instructions with an example
SWAP A ii) RRC A iii) DIV AB iv) XCHD DA A (10 Marks)
OR
4. Write an ALP to convert unpacked BCD to Packed BCD Number. (05 Marks)
Explain Checksum byte in ROM, with an example. (06 Marks)
Name the addressing modes of the following instructions
MOV F0H, #29H ii) ADD 30H iii) MOV 35H,@R0 iv) SUBB R1 XRL A,@R1. (05 Marks)
Module-3
5. Give the bit size and Data range details for the widely used C Data types of 8051.
(07 Marks)
Write an 8051 C program to toggle all the bits of P1 continuously. (05 Marks)
Write an 8051 C program to convert packed BCD 0x29 to ASCII and display the bytes on P1 and P2. (04 Marks)
USN
OR
6. What is the difference between timer and counter? Explain the function of each bit in TMOD Register. (05 Marks)
write an ALP to generate square wave of 3KHZ frequency with 50% duty cycle on Pin P2.1 using timer 1 mode 1 operation, Assume XTAL=12MHZ and show the delay calculation. (07 Marks)
what is the advantage and disadvantages of MODE 2 operation of 8051 when compared to Mode 1 Operation. (04 Marks)
Module-4
7. write the steps required for programming 8051 to transfer and receive data serially. (10 Marks)
write an ALP to transfer letter "Y" serially at 9600 baud rate, continuously (06 Marks)
OR
8. Explain the importance of TI and RI flag. (08 Marks)
Define interrupt, and mention the difference between interrupt and polling method and also write the steps in executing interrupt (08 Marks)
Module-5
9. Explain DAC interface with diagram and also write a C program to generate staircase waveform. (08 Marks)
Show the interfacing circuit and functional pins of LCD . (08 Marks)
OR
10. Draw the pin diagram of 8255 and briefly explain the signals. (06 Marks)
Explain about stepper motor interface with diagram, and also write a c program if motor takes 90 steps to complete one revolution and show the calculation Clockwise Direction) (10 Marks)
2 of 2
15EE52
Fifth Semester B.E.(CBCS) Examination
Microcontroller
(Core Course, E&EE)
Time: 3 Hrs Max.Marks: 80
Note: Answer any FIVE full questions, choosing at least ONE question from each module.
Module-1
1. What is microcontroller? List out the difference between CISC and RISC
(06 Marks)
Explain the 8051 block diagram and its features. (06 Marks)
Explain the PSW Register. (04 Marks)
OR
2. With the help of neat diagram, explain how to interface external 64Kbytes RAM memory with 8051. (06 Marks)
Explain the following addressing modes with an examples.
Indirect Addressing Mode ii) Indexed Addressing Mode
iii) Direct Addressing Mode. (06 Marks)
(c)Explain PUSH and POP instruction with an example. (06 Marks)
Module-2
3. List out and explain different assembler directives used in an ALP. (06 Marks)
Explain the following instructions with an example
SWAP A ii) RRC A iii) DIV AB iv) XCHD DA A (10 Marks)
OR
4. Write an ALP to convert unpacked BCD to Packed BCD Number. (05 Marks)
Explain Checksum byte in ROM, with an example. (06 Marks)
Name the addressing modes of the following instructions
MOV F0H, #29H ii) ADD 30H iii) MOV 35H,@R0 iv) SUBB R1 XRL A,@R1. (05 Marks)
Module-3
5. Give the bit size and Data range details for the widely used C Data types of 8051.
(07 Marks)
Write an 8051 C program to toggle all the bits of P1 continuously. (05 Marks)
Write an 8051 C program to convert packed BCD 0x29 to ASCII and display the bytes on P1 and P2. (04 Marks)
USN
OR
6. What is the difference between timer and counter? Explain the function of each bit in TMOD Register. (05 Marks)
write an ALP to generate square wave of 3KHZ frequency with 50% duty cycle on Pin P2.1 using timer 1 mode 1 operation, Assume XTAL=12MHZ and show the delay calculation. (07 Marks)
what is the advantage and disadvantages of MODE 2 operation of 8051 when compared to Mode 1 Operation. (04 Marks)
Module-4
7. write the steps required for programming 8051 to transfer and receive data serially. (10 Marks)
write an ALP to transfer letter "Y" serially at 9600 baud rate, continuously (06 Marks)
OR
8. Explain the importance of TI and RI flag. (08 Marks)
Define interrupt, and mention the difference between interrupt and polling method and also write the steps in executing interrupt (08 Marks)
Module-5
9. Explain DAC interface with diagram and also write a C program to generate staircase waveform. (08 Marks)
Show the interfacing circuit and functional pins of LCD . (08 Marks)
OR
10. Draw the pin diagram of 8255 and briefly explain the signals. (06 Marks)
Explain about stepper motor interface with diagram, and also write a c program if motor takes 90 steps to complete one revolution and show the calculation Clockwise Direction) (10 Marks)
2 of 2
Other Question Papers
Subjects
- alternative building materials
- b.e.
- biomedical equipments
- biomedical instrumentation
- building services - iv
- building services – ii
- building services – iv
- building structures-i
- clinical instrumentation - ii
- clinical instrumentation – i
- construction management and entrepreneurship
- data structure u sing c+ +
- design of machine elements
- design of steel structural elements
- digital communication
- dynamics of machinery
- electrical and electronic measurement
- electrical estimation and costing
- energy and environment
- environmental protection and management
- finite element method of analysis
- fundamentals of signals and dsp
- highway engineering (15cv63)
- history of architecture
- history of architecture -v
- laser physics and non – linear optics
- machine learning
- management and economics
- management and entrepreneurship
- management and entrepreneurship development
- management and entrepreneurship development.
- materials and methods in building construction
- materials and methods in building construction - vii
- materials and methods in building construction – v
- matrix method of structural analysis
- microcontroller
- non traditional machining
- numerical methods and applications (15cv663)
- operating systems
- optimization techniques
- power electronics
- power system analysis 2
- power system protection
- process control systems
- professional practice i
- signals and systems
- sociology and building economics
- software application lab
- solid waste management
- special electrical machines
- theory of elasticity
- turbomachines
- urban design
- virtual bio-instrumentation
- vlsi design
- water resources management
- water supply and treatment engineering