B.TechSemester 52022-23Microprocessor MicrocontrollerKEC502

Microprocessor Microcontroller (KEC502) - AKTU Question Paper 2022-23

B.Tech · Semester 5 · Free PDF Download

This is the official AKTU Microprocessor Microcontroller Previous Year Question Paper for B.Tech Semester 5, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 5

Session:2022-23

University:AKTU / UPTU

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Questions Asked in 2022-23

Microprocessor Microcontroller (KEC502) — complete question paper

Section AAttempt all questions in brief. 2 x 10 = 20

a
Compare between Microprocessor and Microcontroller
b
Evaluate the role of temporary registers in 8085
c
Name the 06 operating modes of 8254
d
List all the maskable and non-maskable interrupts of 8085
e
List the Difference between Memo ry Mapped I/O and I/O Mapped pe ripheral interfacing techniques
f
Explain Direct Memory Access (DMA)
g
State the function of RS1 and RS0 bits in the flag register of Intel 8051 microcontroller
h
Draw flag register of 8085 mp showing the status of each flag at its proper position (i) List all the interrupts available in 8051. (j) Explain the difference between a JMP instruction and CALL instr uction of 8085 Microprocessor

Section BAttempt any three of the following: 10 x 3 = 30

a
Explain the following instruc tion f 8085 with its addressing mo des, bytes, machine cycle and T states. (i) MOV A, M (ii) ADI 75H (iii) LXI H, 2500 (iv) JNC addr. (v) ANA A
b
With the help of a functional block diagram and working of 8257 DMA controller
c
Design a system for 8085 such t hat it contain 4KB of EPROM and 2KB of RAM using two 2KB of EPROM and tw o 1KB of RAM. Draw the complete interfacing diagram
d
Differentiate between (1) POP and PUSH (2) CALL and Return
e
List the interrupts available in the 8051 microcontroller. Expl ain interrupt enable (IE) SFR and Interrupt priority (IP) SFR

Section CAttempt any one part of the following: 10 x 1 = 10

a
Draw the architecture of 8085 and mention its various functional blocks
b
Design a hexadecimal up counter which count from 00H to FFH in a system with a 1.0 µs clock period
a
Explain the memory segmentation of 8086 in details
b
WAP for 8085 µp to find positive no. in the given set of 10 numbers
a
With the help of a functional bloc k diagram explain the organiz ation and working of 8255 microprocessor
b
Describe the architecture of 8051 with neat diagram
a
Draw the architecture of 8086 Microprocessors and explain its all blocks
b
Explain the various generations of microprocessor
a
Draw and explain interfacing diagram of DAC with 8051 microcont roller. Write program to generate sine wave at the output of DAC
b
Explain the various addressing modes of 8051 microcontroller

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

Repeated Questions — KEC502

Questions that appeared in more than one session, found by comparing 3 years of Microprocessor Microcontroller papers (2021-22, 2022-23, 2023-24)

List all the maskable and non-maskable interrupts of 8085

Appeared in: 2021-22 · 2022-23

Microprocessor Microcontroller — Other Year Papers

AKTU Microprocessor Microcontroller PYQs from other sessions

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