Calicut University 2006 B.E Electronics and Instrumentation Engineering FOURTH SEMESTER B.TECH.(ENGINEERING) - INTRODUCTION TO MICROPROCESSORS - Question Paper

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FOURTH SEMESTER B.TECH.(ENGINEERING) DEGREE EXAMINATION, JUNE 2006

AI/BM 04 403-INTRODUCTION TO MICROPROCESSORS

Time: 3 Hours Maximum:100 Marks

I.

a) Explain what is meant by I/O mapped I/O and memory mapped I/O.

b) List the flags of 8085.

c) Explain the subsequent instruction:

i. LDA 2000.

ii. DAA.


iii. CMA.

iv. LXI H 2000.

v. NOP.

d) Write short note on pipelining.

e) Compare 8086 and 8088.

f) Explain:
i. AAA.

ii. ROR.

iii. SHR.

iv. SCAS B.

v. TEST.

g) List the modes of operations of 8253.

h) What is meant by DMA? Brief its principle of operation.

(8 x 5=40 marks)

2.

(a) discuss the Architecture of 8085 with aneat sketch.(10 marks)

(b) List the interrupts of 8085.(5 marks)

Or

3.

(a) discuss the addressing modes of 8085 with 1 example every.(10 marks)

(b) What is meant by ALE. discuss. (5 marks)

4.

(a) Write a 8085 programme to obtain the number of occurrences of the number FF in a string.(10 marks)

(b) List all Logical Interaction of 8085.(5 marks)

Or

5.

(a) Write down a programme to check whether a two dyst BCD numbers is divisible by nine or not. (10 marks)

(b) List 5 3 kinds instruction.(5 marks)

6.

(a) discuss the architecture of 8086 with neat sketch. (10 marks)

(b)What is meant by minimum mode and maximum mode.(5 marks)

Or

7.

(a) discuss the Addressing modes of 8086 with 1 example every.(10 marks)

(b) discuss the principle of memory segmentation in 8086.(5 marks)

8.

(a) discuss the operation of 8255.(10 marks)

(b) Differentiate ranging from parallel and serial data transfer.(5 marks)

Or

9.

(a) discuss the working of 8279 keyboard display controller.(10 marks)

(b) List the important features of 8259.(5 marks)

(4 x 15=60 marks)

Earning:   Approval pending.