Download AKTU B-Tech 5th Sem 2016-2017 Microprocessor Nec 503 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) 2016-2017 Microprocessor Nec 503 Question Paper

Printed Pages: 3 NEC -503
(Following Paper ID and Roll No. to be ?lled in your;
Answer Books) '
I?upcr ll) : 2289-160 R0? N0.
-? - j
B.TECH
Regular Theory Examination (Odd Sem - V) , 2016 - l7
MICROPROCESSOR
Time : 3 Hours , Max. Marks : 100
SECTION -A
1. Attempt all parts. All parts carry equal marks. Write
answer of each part in short questions. (10X2=20)
a) Give the signi?cance of SIM and RIM ihstruction?
available in 8085?
b) How does CPU identify between 8-bit and 16-bit
operations?
c) Why multiplexing is done in 8085 microprocessor?
d) How clock signals are generated in 8086? What is
the maximum internal clock frequency?
c) How the 20 bit effective address is calculated in
8086? Microprocessor?
f) State the signi?cance of LOCK signal in 8086
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g)
h)
1')
NEC - 503
Give any four miscellaneous instructions in 16-bit
instruction?
How many modes are present in 8255 PPI?
Name the output modes used in 8279
Differentiate between halfduplex and full Duplex
transmission.
SECTION - B
Note: Attempt any ?ve Parts from this section (5X10=50)
2. a) Draw and explain the timing diagram of read cycle
V ?in 8085? - '
b) Sketch the Architecture of 8086 microprocessor?
c) List out the maskable and non-maskable interrupt
available in 8085?
d) Write a 8086 Assembly language program to
convert an 8 bit binary number into equivalent ASCII
code.
e) Explain the following assembler directives.
i) ASSUME ii) EQU
iii) DD iv) DW
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g)
h)
NEC -503
Illustrate the concept of segmented memory? What
are its advantages?
Describe the process of the Direct Memory Access
(DMA) and the functions of various elements of
the 8237.
Cite the concept of interrupt and polling.
SECTION - C
Note: Attempt any two Questions from this section.
3. a)
0b)
4. a)
b)
5 5. a)
b)
(2x15=30)
With neat block diagram explain thearchitecture
of 8085?
Describe the maximum mode signals,lbus cycle and
maximum mode system con?guration of 8086.
Write a program based on 8086 instruction set to
compute the addition of 16 bytes stored in memory.
Draw the stepper motor interfacing with 8086 and
explain its operations. '
Explain the block diagram of the 8279 Key board/
Display interface and its operations.
Draw the block diagram of programmable interrupt
controller and explain its operation.
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