LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.C.A. DEGREE EXAMINATION - COMPUTER APP.
SECOND SEMESTER – APRIL 2011
CA 2875 - MICROPROCESSOR AND ITS APPLICATIONS
Date : 12-04-2011
Time : 1:00 - 4:00
Dept. No.
Max. : 100 Marks
PART-A
Answer ALL Questions:
1.
10*2=20
Differentiate the minimum and maximum mode of 8086.
2. State the function of the pin DEN and TEST.
3. What are assembler directives? Name any four.
4. List the different string instructions.
5. List the types of interrupts.
6. What is trouble shooting?
7. Define OP amp. State various uses .
8. What interfacing? State the uses of interfacing.
9. List any four features of DMA?
10.What is co-processor?
PART-B
Answer ALL Questions:
11.a.) Explain the addressing modes of 8086.
(or)
b.) If 8086 operates at 5MHz
1. Calculate the T state.
2. Calculate delay for the T obtained.
3.Write the program to produce delay.
12.a.) Explain different shift instructions.
(or)
b.) Define procedure. Explain call and return instructions.
5*8=40
13.a.) With timing diagram explain memory write cycle.
(or)
b.) Discuss troubleshooting.
14.a.) Illustrate how digital to analog conversion takes place.
(or)
b.) With necessary diagram explain stepper motor interface.
15.a.) Explain how physical address is generated in protected virtual address
mode of 80286.
(or)
b.) Describe various registers of DMA controller.
PART-C
Answer any TWO Questions:
2*20=40
(Q.No 16 is compulsory)
16.) a.)Discuss the various string instructions.
b.)Describe the tools of program development.
17.)a.) Explain 8259 programmable interrupt controller.
b.)With block diagram discuss the industrial process control.
18.)a.)Explain math co-processor.
b.)Describe the addressing modes of 8051
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