LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.C.A. DEGREE EXAMINATION – COMPUTER APPLICATIONS
SECOND SEMESTER – April 2009
RI 20
CA 2875 - MICROPROCESSOR AND ITS APPLICATIONS
Date & Time: 24/04/2009 / 1:00 - 4:00 Dept. No.
Max. : 100 Marks
PART-A
Answer ALL the Questions:
(10x2=20)
1. Differentiate between microprocessor and microcontroller.
2. List the program development tools.
3. State the difference between MACRO and ROCEDURE.
4. List the flag control instructions.
5. What is an interrupt pointer table?
6. Name the different modes of operation of programmable timer.
7. What is an OP AMP? List the commonly used op amp circuits.
8. State the use of STB signal.
9. What is multitasking?
10.Define Co processor.
PART-B
Answer ALL the Questions:
11.a.) Explain any four program development tools.
(or)
b.) If 8086 operates at 8 MHz
i.
Calculate T state.
ii.
Calculate the delay for the T obtained above.
iii. Calculate N that produces a delay of 2 milli seconds.
iv.
Write a program to produce a delay.
12. a.) Explain different rotate instructions with an example for each.
(or)
b.) Define procedure. Explain the CALL and RETURN instructions.
13. a.) Explain the interrupt pointer table.
(or)
b.) With necessary diagram explain the memory write cycle.
(5x8=40)
14. a.) Explain the block diagram of micro computer based process control system.
(or)
b.) Explain how Digital to Analog conversion takes place.
15. a.) Explain the addressing modes of 8051.
(or)
b.) Explain how the physical address is generated in the protected virtual address
mode of 80386.
PART-C
Answer any TWO Questions
(Q.no 16 is compulsory)
(2x20=40)
16.) Explain in detail the architecture of 8086 with a neat diagram.
17. a.) Explain any ten assembler directives of 8086.
(or)
b.) Explain the seven segment LED display interfacing with a neat diagram.
18. a.) Explain Math-co processor with necessary diagram.
b.) Explain the double handshaking method of data transfer.