M.Sc. DEGREE EXAMINATION, APRIL/MAY 2018.
Second Semester
Physics
ELECTRONICS — II
2 20725-A
Time 3 Hours Max. Marks 70
SECTION — A
Answer any FIVE of the following. 6 30 Marks)
1. Write note on microprocessor hardware for minimum and maximum mode operations.
2. Draw the architecture for interfacing with memories and I/O ports.
3. Write a simple program for finding the largest number in an array.
4. Write notes on naming addressing labels in 8086.
5. Write a short note on 8086 linkers.
6. Explain the working of a Macro assembler.
7. Write down the applications of programmable interval timer 8254.
8. Give a brief account on the working of a DMA controller.
SECTION — B
Answer ALL questions. 10 40 Marks)
9. Write down the pin diagram and describe the pin details of Intel 8086
microprocessor.
Or
Write down the addressing modes of 8086 microprocessor.
10. Write down and explain the initialization instructions in 8086
microprocessor.
Or
Discuss in detail about the functioning of Assembler Directives with
examples.

11. Give an account on the working of assembly language programme
development tools-editor.
Or
Explain the principle and working of 8086 debuggers and emulators.
12. Explain the working of programmable serial interface 8251 and list its uses.
Or
Give the pin description of 8259 and explain the importance of programmable
interrupt controller 8259.