Questions Search

This website covers previous years question papers of various universities and colleges in India. Moreover, the information on admission to various courses from various universities/institutes/colleges are also available. Research paper questions are also updated from time to time. Also the latest teaching faculty plus teachers jobs, Government jobs, Banking Jobs, and other jobs are regularly updated to help jobless candidates. Admit cards of various recruitment of Govt organisation are updated. Search your terms using the search box provided.

Follow by Email

Saturday, November 5, 2016

EC2304 Microprocessors and Micro Controllers April May 2011 Question Paper

Anna University Chennai B.E ECE 05th Semester EC2304 / EC6504 Microprocessors and Micro Controllers April May 2011 Past Exam Paper Free Download

Anna University Chennai
Question Paper Code:
B.E./B.Tech DEGREE EXAMINATION, April May 2011
Fifth Semester
Electronics and Communication Engineering
EC2304 Microprocessors and Micro Controllers
(Regulations 2008)
Time: Three Hours
Maximum: 100 Marks
Question Paper Type: Past Exam Papers
Note: Old Subject Code in R-2008 is EC2304

Answer ALL questions.
Part A (10 x 2 = 20 marks)
1. When the 8086 processor is in minimum mode and maximum mode?
2. Define Segment Override Prefix.
3. What are the 8086 instructions used for BCD arithmetic?
4. List any four program control instructions available in 8086?
5. What do you mean by sample and hold circuit?
6. List the major functions performed by CRT interface?
7. What happens in power down mode of 8051 microcontroller?
8. What are the different ways of operand addressing in 8051?
9. Why are relays that use coils called electromagnetic relays?
10. What is PWM?

PART-B (5 x 16 = 80 Marks)
11.(a) (i) Explain the internal hardware architecture of 8086 microprocessor with neat diagram [Marks 12]
(ii) Write briefly about the Direct Memory Access. [[Marks 4]
(or)
(b) (i) Explain the external memory addressing in 8086 [Marks 8]
(ii) Discuss the interrupts types of 8086 microprocessor. [Marks 8]

12.(a) (i) Explain the assembler directives ASSUME, EQU, DW and EVEN with suitable examples. [Marks 8]
(ii) Write an 8086 ALP to sort the array of elements in ascending order. [Marks 8]
(or)
(b) (i) Write an 8086 ALP to find the largest element in an array elements. [Marks 6]
(ii) Explain the data transfer group and logical group of 8086 instructions. [Marks 10]

13.(a) With neat block diagram explain the 8255 Programmable Peripheral Interface and its operating modes. [Marks 16]
(or)
(b) Draw and explain the block diagram of 8254 Programmable Interval Timer. Also explain the various modes of operation. [Marks 16]

14. (a) (i) Explain the architecture of 8051 microcontroller with neat diagram. [Marks 12]
(ii) Write briefly about the operating modes for serial port of 8051 microcontroller. [Marks 4]
(or)
(b) (i) Write an 8051 ALP to create a square wave of 66% duty cycle on bit 3 of port 1. [Marks 6]
(ii) Describe the different modes of operation of timers/counters in 8051 with its associated register. [Marks 10]

15.(a) (i) Draw and explain the block diagram of traffic light control system. [Marks 10]
(ii) Briefly discuss the features of RTC device. [Marks 6]
(or)
(b) Draw the diagram to interface a stepper motor with 8051 microcontroller and explain. Also write an 8051 ALP to run the stepper motor in both forward and reverse direction with delay. [Marks 16]

No comments:

Post a Comment

Pen down your valuable important comments below