2011 Calicut University B.Tech Computer Science and Engineering Fourth semester b.tech examination ,cso9 405 microprocessor based design Question paper

FOURTH SEMESTER B.TECH EXAMINATION

MICROPROCESSOR BASED DESIGN
Time:3 hours Maximum:70 marks

PART A
(answer all questions 5*2=10 marks)

1.What is a LAN?
2.What is the function of operating system?
3.Differentiate b/w Real mode and Protected mode of operation of 8086.
4.what is the role played by cache memory in pentium processor?
5.Differentiate b/w Hardware and Software interrupt.

PART B
(Answer any 4, 4*5=20 marks)

1.Bring about the hardware specification of 8086?
2.What are the types of address decoding ?Explain.
3.Design a square wave generator of 1 kHz using timer 8254.
4.Give the initialization sequence of 8259.
5.Program the VART to transmit 7 bits/character at 2400 bands.
6. Write a program to find how many times a pattern 02 is present in a given array of 10 numbers.

PART C
(Answer any one,4*10=40 marks )

1.Discuss briefly about the memory and I/O organisation of a PC system.
Or
2.Discuss about serial interface and graphic adapter of a PC system.

3.Write a program to arrange N numbers in descending order.
Or
4.Write a program to separate out odd and even numbers in a given array of N numbers and display their count.

5.Explain the memory decoding circuit of 80486.
Or
6.Explain the working of VART.

7.Describe the operation of 8279.
Or
8.Explain the working of EISA Bus.