University Of Pune Question Paper
S.E. (Computer Engg.) (Semester – II) Examination, 2011
MICROPROCESSORS AND INTERFACING TECHNIQUES
(2003 Course)
Time : 3 Hours Max. Marks : 100
Instructions : 1) Answer 3 questions from Section I and 3 questions from
Section II.
2) Answers to the two Sections should be written in separate
books.
3) Neat diagrams must be drawn wherever necessary.
4) Black figures to the right indicate full marks.
5) Assume suitable data, if necessary.
SECTION – I
1. a) Draw and explain the internal architecture of 8086 μp. 8
b) Explain 8086 minimum system configuration with suitable diagram. 8
OR
2. a) Differentiate between memory mapped I/O and I/O mapped I/O. 8
b) What is memory segmentation in 8086 ? Explain it with a suitable diagram. 8
3. a) Differentiate between assembler directives and instructions. Give two examples
of each. 8
b) What is addressing modes of 8086 ? Explain it with any one example. 8
OR
4. a) Write a ALP to calculate the length of the any string. Write appropriate
comments. 8
b) Explain the following instruction with one examples of each : 8
i) Call
ii) RET
iii) RCR
iv) MOVSB.
P.T.O.
[3962] – 356 -2-
5. a) Explain the initialisation sequence of 8259 PIC. 8
b) Draw and explain internal architecture of 8253. Explain any two operation
mode of 8253. 10
OR
6. a) Explain the following terms : 8
i) Cascading
ii) Polling
iii) Buffered mode
iv) Automatic EOI.
b) Give the control word format for 8253/54 write a program to initialise
counter 2 in mode 0 with a count of C038H. Assume address for control word
register = 0BH, counter 0 = 08H, Counter 1 = 09H and counter 2 = 0AH. 10
SECTION – II
7. a) Explain in brief the I/O ports of 8255 PPI. 8
b) What is handshaking ? Draw and explain the centronix type interfacing to
interface the printer to 8255. 8
OR
8. a) Explain the following signal functions of 8279 : 8
i) SL0-SL3
ii) BD
iii) IRQ
iv) STB
b) Draw and explain in brief 8251. 8
9. a) What is D/A converter ? Explain the different sources of errors in DAC. 8
b) Write a short note (any two) : 8
i) Data acquisition system
ii) LVDT
iii) Flow sensor.
OR
10. a) Explain the working of any one temperature transducer. 8
b) Explain the different conversion technique of ADC. 8
11. a) What is POST ? Enlist the different steps of POST process. 10
b) What is PSP ? Draw the structure of PSP. 8
OR
12. a) What is a TSR ? Write a TSR program to give a beep sound, when any key is
pressed. 10
b) What is the use of ⋅Com file ? Differential between ⋅Com and ⋅ EXE file. 8
–––––––––––––––––
S.E. (Computer Engg.) (Semester – II) Examination, 2011
MICROPROCESSORS AND INTERFACING TECHNIQUES
(2003 Course)
Time : 3 Hours Max. Marks : 100
Instructions : 1) Answer 3 questions from Section I and 3 questions from
Section II.
2) Answers to the two Sections should be written in separate
books.
3) Neat diagrams must be drawn wherever necessary.
4) Black figures to the right indicate full marks.
5) Assume suitable data, if necessary.
SECTION – I
1. a) Draw and explain the internal architecture of 8086 μp. 8
b) Explain 8086 minimum system configuration with suitable diagram. 8
OR
2. a) Differentiate between memory mapped I/O and I/O mapped I/O. 8
b) What is memory segmentation in 8086 ? Explain it with a suitable diagram. 8
3. a) Differentiate between assembler directives and instructions. Give two examples
of each. 8
b) What is addressing modes of 8086 ? Explain it with any one example. 8
OR
4. a) Write a ALP to calculate the length of the any string. Write appropriate
comments. 8
b) Explain the following instruction with one examples of each : 8
i) Call
ii) RET
iii) RCR
iv) MOVSB.
P.T.O.
[3962] – 356 -2-
5. a) Explain the initialisation sequence of 8259 PIC. 8
b) Draw and explain internal architecture of 8253. Explain any two operation
mode of 8253. 10
OR
6. a) Explain the following terms : 8
i) Cascading
ii) Polling
iii) Buffered mode
iv) Automatic EOI.
b) Give the control word format for 8253/54 write a program to initialise
counter 2 in mode 0 with a count of C038H. Assume address for control word
register = 0BH, counter 0 = 08H, Counter 1 = 09H and counter 2 = 0AH. 10
SECTION – II
7. a) Explain in brief the I/O ports of 8255 PPI. 8
b) What is handshaking ? Draw and explain the centronix type interfacing to
interface the printer to 8255. 8
OR
8. a) Explain the following signal functions of 8279 : 8
i) SL0-SL3
ii) BD
iii) IRQ
iv) STB
b) Draw and explain in brief 8251. 8
9. a) What is D/A converter ? Explain the different sources of errors in DAC. 8
b) Write a short note (any two) : 8
i) Data acquisition system
ii) LVDT
iii) Flow sensor.
OR
10. a) Explain the working of any one temperature transducer. 8
b) Explain the different conversion technique of ADC. 8
11. a) What is POST ? Enlist the different steps of POST process. 10
b) What is PSP ? Draw the structure of PSP. 8
OR
12. a) What is a TSR ? Write a TSR program to give a beep sound, when any key is
pressed. 10
b) What is the use of ⋅Com file ? Differential between ⋅Com and ⋅ EXE file. 8
–––––––––––––––––
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