B.TechSemester 62023-24Microprocessor And MicrocontrollerKEE602

Microprocessor And Microcontroller (KEE602) - AKTU Question Paper 2023-24

B.Tech · Semester 6 · Free PDF Download

This is the official AKTU Microprocessor And Microcontroller Previous Year Question Paper for B.Tech Semester 6, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 6

Session:2023-24

University:AKTU / UPTU

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Questions Asked in 2023-24

Microprocessor And Microcontroller (KEE602) — complete question paper · 100 marks · 3 Hours

Section AAttempt all q u e s t i o n s i n b r i e f . 2 x 10 = 20

a
What is bus? What are different t ypes of buses supported by 8085? 02
b
What are the uses of accumulator re gister? 02
c
Give the flag status of 8085 when following additions are perf ormed
d
Discuss the fla g registers of 8086 MP. 02
e
Explain the following program ming techniques in 8085 microprocessors
1
Looping 2. Indexing 3. Counting
f
Which Control si gnals are used for DMA operation? 02
g
In 8255, which port can be used in all modes of operation and which port is used for handshake signals?
h
Explain TCON and TMOD SFR for 8051 Microcontroller. 02 i. What is PSW in 8051 microcontrollers? 02 j. State the function of RS1 and RS 0 bits in the flag register of Intel 8051 microcontroller?

Section BAttempt any three o f t h e f o l l o w i n g : 3 x 10 = 30

a
Identify the addressing modes of 8085 microprocessor and explain them
b
Explain all the addressing m odes of 8086 microprocessor? 10
c
Explain 8255 PPI in detail. A nd discuss its mode 1 and mode 2 operation. 10
d
List main feature of 8051 microcontroller. Explain the inter nal data memory organization of 8051 microcontroller?
e
What do you mean by assembly language programming? What is t he function of JUMP and CALL instruction?

Section CAttempt any one p a r t o f t h e f o l l o w i n g : 1 x 10 = 10

a
Discuss with the help of timing diagram that how microproces sor can fetch the opcode and how many T - states are required to complete this cycle?
b
How many types of interrupts are there in 8086 microprocesso rs? Give the explanation in details
a
Write an assembly level program to find the highest number f rom a given number
b
Discuss Read cycle timing diagram for Minimum mode in 8086 microprocessors?
a
What do you understand by DMA controller? With the help of b lock diagram explain the working of 8237
b
Explain different mode s of operation of 8254? 10
a
What is the difference betw een Harvard Architecture and von Neumann Architecture?
b
Draw & explain the pin diag ram of 8051 microcontroller. 10
a
What is the difference between PIC and ARM processor? Explai n their application areas
b
Explain all the arithmetic & logical instructions of 8051 microcontroller. 10

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.

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