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PIMPRI CHINCHWAD COLLEGE OF ENGINEERINGSector 26, Pradhikaran, Nigdi, Pune 44

SUBJECT: Microprocessor and Interfacing Techniques

CLASS: S.E. COMP A SectionSUBJECT INCHARGE: Mrs. Preethi S.J.

QUESTION BANK OF UNIT 1

1. List the features of 8086 microprocessor.

2. Explain the register organization of 8086 in detail. Give the function of each register.

3. Explain the architecture of 8086 microprocessor with the help of neat block diagram.

4. Explain memory segmentation in 8086.

5. What is logical address and physical address? How physical address is generated in 8086?

Explain with an example.

6. Explain Default and Alternate register assignments in 8086. What is the use of segment overrideprefix?

7. Explain the functions of pins in 8086 (Any 5 pins can be asked)

8. Explain the minimum mode signals of 8086.

9. Explain the maximum mode signals of 8086.

10. Explain physical memory organization in 8086.

11. Explain I/O addressing capabilities of 8086.

12. Explain 8086 in minimum mode configuration.

13. Explain 8086 in maximum mode configuration.14. Explain the operation of the following

8284 clock generator

8286 transceiver

8282 address latch

8288 bus controller

15. Explain the reset and initialization activity of 8086.

16. Define bus cycle, and explain the minimum mode read and write bus cycle with proper timing

diagram.

17. Draw and explain the timing diagrams of input and output transfers of 8086 in maximum mode.

18. Give the comparisons between 8086 and 8088 processors.

19. What is pipelining? How is it achieved in 8086 microprocessors?

20. Explain with suitable diagram, how 8086 accesses a byte or a word from even and odd memory

banks?

21. Explain various address decoding techniques in 8086.

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22. Problems on memory interfacing of 8086/8088 in minimum mode/maximum mode.

23. Give comparisons between memory mapped I/O and I/O mapped I/O.

24. Problems on I/O mapped I/O interfacing and problems on memory mapped I/O interfacing.

QUESTION BANK OF UNIT 2

1. Explain in detail the programmers model of 8086.

2. Explain various addressing modes of the 8086 processor with one example. OR given the

instructions identify the addressing mode.

3. Explain the stack structure of 8086/8088

4. Explain the function of CALL and RET.

5. Study instruction set of 8086 in detail. (any question can be asked on it)

6. Explain instruction encoding formats in 8086. OR given the instruction write the opcode.7. Explain the following

a) Assembler b) linker c) loader d) debugger e) emulator f) ALP programming tips

8. Explain debug commands.

9. What are assembler directives? Explain Assembler directives and operators.

10. Given a problem, write an ALP to solve the problem.

11. Explain conditional statements used in ALP.

12. Explain DOS INT 21h, functions 01,06,07,08,0A,0B,0C,02,09

13. Differentiate between macro and procedure. Justify where macro is suitable than procedure withexamples.

14. Explain the difference between near and far procedure of 8086 microprocessor.

15. Write an ALP to generate the given time delay.

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