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Previous Year Question Paper

CSIT-503 (B) - Microprocessor and Interfacing

November 2023•CSIT•SEMESTER-5
November 2023
Max Marks: 70
Duration: 3 Hours
Instructions:

• Attempt any five questions.

• All questions carry equal marks.

• In case of any doubt or dispute the English version question should be treated as final.

Q.1
a)Unit 1

Draw and explain the architectural diagram of 8086 microprocessor. alt=''

b)Unit 1

Explain in brief about the evolution of microprocessors.

Q.2
a)Unit 3

What are Macros in 8086, discuss them with suitable examples.

b)Unit 2

Explain the following instructions with suitable example of each:

i) LXI

ii) MOV

iii) SHLD

iv) LDAX

v) CMP

vi) STA

Q.3
a)Unit 3

Write a program to transfer a block of 1 data elements from memory location 5000 H to 6000 H.

b)Unit 2

What is subroutine. Explain the use of stack in CALL and RETURN instructions.

Q.4
a)Unit 3

Write a program in Assembly language to add two 16 bit number using ADC instruction. Store the result in memory.

b)Unit 3

List out the different Data transfer schemes present in Microprocessor and explain each one in detail.

Q.5
a)Unit 3

Explain about I/O Interfacing and Memory Interfacing with 8086 with an example?

b)Unit 4

What is Bus? Describe ISA Bus and EISA Bus in detail?

Q.6
a)Unit 4

Explain 8259 programmable interrupt controller with neat functional block diagram. alt=''

b)Unit 4

Explain direct memory access controller in detail with neat block diagram. Why is it needed? alt=''

Q.7
a)Unit 5

With a neat sketch explain the function of memory array of PROM. alt=''

b)Unit 5

What is primary, secondary and cache memory. Give the difference between Primary and Secondary Memory.

Q.8
a)Unit 1

Write a short notes on any two:

i) Parallel Printer Interface

ii) Microcomputer Development System

iii) Addressing Modes

iv) Real and Virtual Memory Buses