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2015 B.Tech Computer Science and Engineering Acharya Nagarjuna University - B.Tech - CSE - November 2015 - Question Paper - Micro Processors & Micro Controllers (MPMC) - CS311 Question paper



Course: B.Tech Computer Science and Engineering   University/board: Acharya Nagarjuna University

Do you want the previous question papers of Acharya Nagarjuna University - B.Tech - CSE - Micro Processors & Micro Controllers (MPMC) - CS311? If you do, then you came to the right location. This is the question paper conducted by Acharya Nagarjuna University to Engineering 3rd Year - 1st Semester students in November 2015. Feel free to download this paper and use it to prepare for your upcoming exams.




[Total No. of Questions : 09]

CS/IT 311 (CR)



III/IV B.Tech Degree Examinations, October - November 2015

First Semester

CS/IT

Micro Processors & Micro Controllers



Time : 3 hours

Maximum Marks : 70



Answer question No.1 Compulsory

Answer ONE question from each Unit


1. Answer the following [1 x 14 = 14M]
a) What are the use of PWM in Motor Control Using Microcontroller.
b) Compare assembly level language and high level language.
c) How Clock Signal is generated in 8086 Microprocessor?
d) Define the terms RISC and CISC with suitable examples.
e) List the four display modes of 8279 Keyboard/Display Controller.
f) What is direct memory access?
g) Why is it necessary to have external pull-up for port 0 in 8051?
h) What are tri-state devices?
i) Differentiate microprocessor from microcontroller in system design.
j) Define macro.
k) Need for DMA.
l) Features of USB.
m) Features of Pentium.
n) Static RAM Vs. Dynamic RAM.

UNIT - I [1 x 14 = 14M]

2. a) List different system buses of 8085 microprocessor and give function of each bus.
2. b) Write an assembly language program for implementing sorting operation. (OR)
3. a) How strings are to be manipulated with assembly language programming? Explain.
3. b) Draw and explain the timing diagram of write cycle in 8086 in minimum mode?

UNIT - II [1 x 14 = 14M]

4. a) Explain the function of programmable peripheral interface INTEL 8255.
4. b) Draw the block diagram of 8259A and explain how to program 8259A. (OR)
5. Draw a block diagram to interface a Analog to Digital converter with a microprocessor and explain its working.

UNIT - III [1 x 14 = 14M]

6. Describe the conversion process
a) TTL to RS232C
b) RS232C to TTL (OR)
7. a) Briefly explain about DOS and BIOS interrupts?
7. b) How interrupts are handled in microprocessor. Give the interrupt cycle.

UNIT - IV [1 x 14 = 14M]

8. a) Draw the basic architecture of 80286 and explain.
8. b) Define opcode and operand. List different addressing modes of 8051 microcontroller with one suitable example each. (OR)
9. a) Explain the memory structure of an 8051 microcontroller.
9. b) Explain Protected virtual address mode of operation.





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