B.TechSemester 52022-23Microprocessor MicrocontrollerKEC502
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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) — extracted question text

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. Check the original PDF for equations, diagrams and complete wording. Extracted: 2026-08-23.

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