BE 511303-512303-6C0042 Microprocessor and Microprocessor based System Nov 2010 Sathyabama University

Register Number

                               

SATHYABAMA UNIVERSITY

(Established under section 3 of UGC Act, 1956)

Course & Branch: B.E/B.Tech-CSE/IT

Title of the Paper: Microprocessor and Microprocessor based System

Max. Marks: 80

Sub. Code: 511303-512303-6C0042                      Time: 3 Hours

Date: 16/11/2010                                                    Session: FN

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PART - A                (10 X 2 = 20)

Answer ALL the Questions

1.     What is an Instruction? Mention its types?

 

2.     What is the significance of timing diagram?

3.     What are the differences between assembly level programming and high level Programming?

4.     What is the purpose of pointer register?

5.     What is the function of interrupt command?

6.     Why I/O interfaces are essential?

7.     What are the various program memory addressing modes?

8.     List out the functions to be performed by the I/O interfacing circuits?

9.     What is an instruction format?

10.   Give the significance of the flag register?

     PART – B                                  (5 x 12 = 60)

Answer All the Questions

11.   In detail, explain the 8085 microprocessor architecture and its operation with relevant diagram?

(or)

12.   Explain how the instruction executions are carried out and also illustrate it with suitable examples.

13.   Write a program that includes a subroutine to multiply two 16 bit numbers?

(or)

14.   (a) How are instruction classified in 8085?

(b) Briefly comment on branching, looping and indexing and quote their significance.

15.   With a neat diagram explain the function programming interface device 8355.

(or)

16.   (a) Differentiate memory mapped I/O and I/O mapped I/O

(b) How is the interrupt command executed by the processor? List out the Sequence of steps involved in it.

17.   With a neat diagram, explain the 8086 architecture and highlight the major significance of it over 8085 processor.

(or)

18.   In detail, explain the various addressing modes used in 8086 processor. Comment on the execution time involved in each of them.

19.   Write a detailed note on assembler dependent instruction and programming.

(or)

20.   Gives notes on

(a)                       Instruction format

(b)                      Signed and Unsigned conditional branch instruction.

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