Register Number
SATHYABAMA UNIVERSITY
(Established under section 3 of UGC Act,1956)
Course & Branch :B.E - P-EEE
Max. Marks:80
Title of the Paper :Microprocessor and its Applications
Sub. Code :614PT401(2007-08-09-10)
Time : 3 Hours
Date :02/05/2012
Session :AN
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1.
PART - A
Answer ALL the Questions
What is addressing modes?
(10 x 2 = 20)
2.
How many interrupts are there in 8085 microprocessor?
3.
Give an example for Register indirect addressing mode
4.
Let the content of Code segment be 2834 and the content of
instruction pointer be 0100. Calculate the 20bit physical address.
5.
Which instruction in 8086 is used to translate one form of code to
the other?
6.
What is the difference between AND & TEST instruction?
7.
Write the sequence of instruction to initialize command word to
perform I/O operation using port A, Port B and Port C as
output ports with a peripheral device. Assume the memory
mapped I/O address of Control Word is FFE0?
8.
What is the use of Terminal count register in DMA?
9.
State the advantages of LCD over LED.
10. What is the reason for having two grounds in an ADC?
PART – B
Answer All the Questions
(5 x 12 = 60)
11. With Suitable examples explain the Addressing modes of 8085
(or)
12. Explain: (a) flag Register
(b) Program counter &
(c) Stack pointer in 8085 microprocessor
13. With a neat block diagram explain the architecture of 8086
microprocessor in detail.
(or)
14. What is the size of flag register in 8086 microprocessor? With
neat sketches explain the functions of flag register with examples.
15. Give the memory interface circuit to 8086 based system for
interfacing 16KX8 SRAM starting at 40,000h.
(or)
16. Explain the various types of addressing modes of 8086
microprocessor with examples.
17. With neat block diagram explain the 8255 programmable
peripheral interface?
(or)
18. Explain the internal architecture of 8257 DMA controller with a
neat block diagram.
19. Explain the interfacing of keyboard to the 8086 with suitable
flowchart.
(or)
20. Explain the way in which a 4 bit 7-Segment display is interfaced
with 8086 Microprocessor