Download AKTU B-Tech 5th Sem 2015-2016 Microprocessor Its Applications Nee 504 Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 5th Semester (Fifth Semester) 2015-2016 Microprocessor Its Applications Nee 504 Question Paper

Printed Pagesz4 665 NEE-504
(Following Paper ID and Roll No. to be ?lled in your
Answer Book)
Roll No.
B.Tech.
(SEM. V) THEORY EXAMINATION, 2015?16
MICROPROCESSOR & IT S APPLICATIONS .
[Time:3 hours] [Total Marks:100]
SECTION?A
Note: All questions are compulsory.
1. Attempt all parts .All parts carry equal marks. Write
answer of each part. in short . (2x10=20)
(a) What is microprocessor? Give the power supply
& clock frequency of 8085.
(b) Specify the memory addressing capacity of 8085
microprocessor. How many address , lines are
' required to address 2MB memory.
(c) De?ne instruction cycle, machine cycle and T-state
in microprocessor operation.
((1) Specify the type of addressing mode used in
following instructions-
0
8800 (1) P.T.O.

800
(Q
(0
(g)
m)
0)
G)
i. MOVAX,[2050H]
ii. ?1NAX,DX
List advantages of memory- mapped 'I/O mapped
I/O technique of data transfer in micropmcessor .
Explain the execution of following instruction in
8086-
i. PUSH S
ii. SBB BX, CX
How does the microprocessor differentiate
between data and instruction?
Compare RET and POP instructions in
microprocessor.
Explain the need of memory segmentation in 8086.
Calculate the execution time for the following code
using 8085 operated at 3 MHz clock frequency.
MVIB,37H
HLT
(2) NEE-504
Attempt any ?ve questions from this section.
2.
8800
. SECI'ION?B
(10x5=50)
Draw the ?ow Chan and write assembly language program
for the addition of two 16-bit numbers considering carry.
The numbers are stored in memory starting from 2000H.
Store the result of addition and carry from memory
3000H.
With the neat pin and block diagram and describe the
internal architecture of 8085. State the function of each '
block shown.
Draw and explain the timing diagram of memory read
operation in 8085. Write different step used in it.
Write an assembly language program to generate adelay
of lmsec. Also show the calculation of time delay.
Assume that the crystal frequency if 8085 is 6 MHz.
Describe the various addressing modes of 8086 with
suitable example of each.
a) With a neat diagram discuss internal architecture
of 8255.
b) Write a program to initialize 8255 as follows-
PortA: Simple input port
Port B: Simple output port
Port CL: Output port A
Poer CU: Input port
Assume the?address of control register is 03H.
(3) P.T.0.

Explain the role of interrupts in programming. Explain
the interrupts used in 8085. List out all the vectored
interrupts of 8085 and give their vector address.
With the neat block diagram describe th?? internal
architecture of 8086. State the function of each block
shown. Explain the use of instruction queue.
SECTION?C
Attempt any two questions from this section. (15x2=30)
10.
ll.
12.
8800
What do you understand by DMA? Wlth the help ofblock
diagram explain the working of 8237/8257.
(a) What is 8237/8254 programmable interval timer,
draw and explain its internal architecture.
(b) Explain how 8253/8254 can be used as a square
wave generator.
Give a block diagram anddescribe the use of
microprocessor to control the temperatureof an
electric oven. With the help of ?ow chart explain the
algorithm used for temperature control.
__x.._.
(4) 0 NEE-504