Vinayaka Missions University 2008 B.E Information Technology Microprocessors & Microcontrollers - Question Paper

Sl.No E3753 sub.code:3510431
B,E, DEGREE exam
4th semester
info TECHNOLOGY

MICROPROCESSORS AND MICROCONTROLLERS
Maximum:80
ans all the ques.

PART-A(10*2=20)

1.Why AD0-AD7 are multiplexed?

2.Differentiate ranging from unidirectional buffer and bidirectional buffer?

3.What are segment registers?Explain the purpose of them.

4.Explain the function of linker?

5.What is meant by buffering?

6.What is bus arbiter?

7.Explain the use of typical pin of DRAM?

8.What is the difference ranging from timer and counter operation in 8051?

9.What are the signals that are currently handled in ADC interfacing?

10.Differentiate microprocessor and microcontroller?

PART-B(5*12=60)
11.a)Explain the different kinds of instruction set of 8085 with an example?

OR

b)Draw and discuss 8085 microprocessor system?

12.a)Draw and discuss in detail about the architecture of 8085?

OR
b)Explain the 8086 interrupt types?
discuss any 6 of the assembler directives in 8086?

13.a)Draw and discuss the pin diagram of 8086.

OR
b)Explain the loosely coupled multiprocessor configuration.

14.a)Draw and discuss the stepper motor interfacing?

OR
b.)Explain the architecture,organisation,and different modes of operation of a programmable DMA controller 8257?

15.a)Explain the kinds of instruction set in 8051 with an example.
Write a program to count number of zeroes in an number.

OR
b)Explain in detail about the 4 ports I/O interfacing in 8051.

Earning:   Approval pending.