SUBJECT - INTRODUCTION TO MICROPROCESSORS
CODE - 09 404
SEMESTER - FOURTH
BRANCH - AI
UNIVERSITY - CALICUT
YEAR - 2011
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Part A
Answer all Questions
1.What are the addressing modes of 8085?
2.Write a program to generate a time delay of 1 m. sec.
3.What is the function of BIV and EV.
4.What is meant by programmable one shot in 8283 timer ?
(5x2=10 marks)
Part B
Answer any four questions
6.Explain how a DMA transfer is carried out in 8085.
7.Write a program to multiply two 8 bit numbers.
8.Explain about memory segmentation in 8086.
9.Explain the mode 0 operation of 8255 with an example.
10.Explain the principle behind A/D converter.
11.Explain about Assemblers.
(4x5=20 marks)
Part C
Answer all questions
12.Describe the architecture of 8085 microprecessor.
Or
13.Discuss the memory organisation of a microprocessor and also explain how I/O devies are inter¬faced with the microprocessor.
14.Write a program to convert a binary number to a BCD number.
Or
15.Write a program to find the average of N numbers.
16.Explain the addressing modes of 8086.
Or
17.Discuss about the signals present in 8086 processor.
18.Describe the operation of 8259.
Or
19.Explain how key boar d/display controller works.
(4x10=40 marks)
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