Exam Details
| Subject | microprocessor and interfacing | |
| Paper | ||
| Exam / Course | b.tech | |
| Department | ||
| Organization | Institute Of Aeronautical Engineering | |
| Position | ||
| Exam Date | January, 2019 | |
| City, State | telangana, hyderabad |
Question Paper
Hall Ticket No Question Paper Code: AEC021
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
Four Year B.Tech V Semester End Examinations (Supplementary) January, 2019
Regulation: IARE R16
MICROPROCESSORS AND INTERFACING
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. Illustrate the register organization of 8086 microprocessor.
Calculate the physical address represented by
4370:561EH
ii) 7A32:0028H
2. Explain the following addressing modes in 8086 with examples.
Immediate
(ii)Direct
Register Indirect
Register Relative
Describe the operation carried out when the following instructions are executed by 8086.
MOV
ii) MOV
iii) XLAT
iv) MUL,BL
DIV,BL
UNIT II
3. Write an assembly language program to find the smallest number from an array of 5 numbers.
Explain the following pins with respect to 8086 microprocessor.
i. DT/R
ii. INTA,
iii. HLDA
iv. LOCK
4. With the help of neat sketch, explain the timing diagram of read cycle for minimum mode
configuration for 8086 microprocessor.
Write an assembly language program to reverse the given string 6".
Page 1 of 2
UNIT III
5. With neat sketch explain the modes of operation of 8255.
Write an assembly program to convert analog to digital using 8086 micro processor.
6. List out the types of interrupts in 8086 and explain each with its importance.
What is interrupt vector table? What are the operations done during handling an interrupt
service routine?
UNIT IV
7. Draw the control word format of 8251 also express the function of each bit.
Write an assembly language program to initialize 8251 and receive 100bytes of data.
8. Explain USART 8251 with the help of a neat diagram.
Explain the transmission and reception of serial data using 8251 indicating the functions of
various registers in it.
UNIT V
9. Explain architecture of 80286 with the help of block diagram.
Explain the following signal functions of 80386
i. BE0-BE3
ii. W/R
iii. D/C
iv. ADS
v. NA
vi. BS16
10. Explain in detail Register Organization of 80386 advanced microprocessor.
Explain the features of 80486 advanced microprocessor in detail.
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
Four Year B.Tech V Semester End Examinations (Supplementary) January, 2019
Regulation: IARE R16
MICROPROCESSORS AND INTERFACING
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. Illustrate the register organization of 8086 microprocessor.
Calculate the physical address represented by
4370:561EH
ii) 7A32:0028H
2. Explain the following addressing modes in 8086 with examples.
Immediate
(ii)Direct
Register Indirect
Register Relative
Describe the operation carried out when the following instructions are executed by 8086.
MOV
ii) MOV
iii) XLAT
iv) MUL,BL
DIV,BL
UNIT II
3. Write an assembly language program to find the smallest number from an array of 5 numbers.
Explain the following pins with respect to 8086 microprocessor.
i. DT/R
ii. INTA,
iii. HLDA
iv. LOCK
4. With the help of neat sketch, explain the timing diagram of read cycle for minimum mode
configuration for 8086 microprocessor.
Write an assembly language program to reverse the given string 6".
Page 1 of 2
UNIT III
5. With neat sketch explain the modes of operation of 8255.
Write an assembly program to convert analog to digital using 8086 micro processor.
6. List out the types of interrupts in 8086 and explain each with its importance.
What is interrupt vector table? What are the operations done during handling an interrupt
service routine?
UNIT IV
7. Draw the control word format of 8251 also express the function of each bit.
Write an assembly language program to initialize 8251 and receive 100bytes of data.
8. Explain USART 8251 with the help of a neat diagram.
Explain the transmission and reception of serial data using 8251 indicating the functions of
various registers in it.
UNIT V
9. Explain architecture of 80286 with the help of block diagram.
Explain the following signal functions of 80386
i. BE0-BE3
ii. W/R
iii. D/C
iv. ADS
v. NA
vi. BS16
10. Explain in detail Register Organization of 80386 advanced microprocessor.
Explain the features of 80486 advanced microprocessor in detail.
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