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EC-604 (A) · Microcontroller & Embedded system/Important Questions

Microcontroller & Embedded system (EC-604 (A)) - Important Questions

  1. 7 Marks High Priority Asked: 2025, 2023, 2022

    Explain/design an 8051 microcontroller-based data acquisition system and its hardware components

    Appeared 3x (2025, 2023, 2022)

  2. 7 Marks High Priority Asked: 2024, 2023

    Explain ADC interfacing to 8051 with suitable diagram/schematic.

    Appeared 2x (2024, 2023)

  3. 7 Marks High Priority Asked: 2025, 2020

    Explain the working of 8051 serial communication system and its serial communication modes

    Appeared 2x (2025, 2020)

  4. 7 Marks High Priority Asked: 2025

    Describe the working of DAC interfacing with 8051 with timing diagrams and applications.

    Appeared 1x (2025)

  5. 7 Marks High Priority Asked: 2025

    Write an embedded C program to transmit a message via the serial port using Mode 1 of 8051.

    Appeared 1x (2025)

  6. 7 Marks High Priority Asked: 2023, 2022

    Explain the timer/counter functions and timer mode operations of the 8051 microcontroller

    Appeared 2x (2023, 2022)

  7. 7 Marks Medium Priority Asked: 2024

    Define Baud Rate, SBUF Register and SCON Register

    Appeared 1x (2024)

  8. 7 Marks Medium Priority Asked: 2024

    Write an 8051 program using Timer 0 in Mode 1 to generate a 1 kHz square wave on pin P2.3 with 11.0592 MHz crystal

    Appeared 1x (2024)

  9. 7 Marks Medium Priority Asked: 2024

    Explain the role of RS-232 in data transmission and its handshaking signals

    Appeared 1x (2024)

  10. 14 Marks Medium Priority Asked: 2023

    Write short notes on RS-232 among other options

    Appeared 1x (2023)

  11. 7 Marks Low Priority Asked: 2022

    Give steps to program 8051 for receiving serial data.

    Appeared 1x (2022)

  12. 7 Marks Low Priority Asked: 2022

    Explain how a stepper motor can be interfaced to 8051 microcontroller with neat diagram.

    Appeared 1x (2022)

  13. 7 Marks High Priority Asked: 2025, 2024, 2023, 2022

    Define addressing mode and explain the different addressing modes of the 8096 microcontroller with examples.

    Appeared 4x (2025, 2024, 2023, 2022)

  14. 7 Marks High Priority Asked: 2024, 2022, 2020

    Draw and explain the functional block diagram of the 8096 microcontroller, explaining each block.

    Appeared 3x (2024, 2022, 2020)

  15. 6 Marks High Priority Asked: 2024, 2022

    Explain the features / hardware features of the 8096 microcontroller.

    Appeared 2x (2024, 2022)

  16. 7 Marks High Priority Asked: 2025

    Analyze Intel 8096 assembly code involving LD, MPY/DIV and ST to determine stored result, effect of instruction change, and overflow risk.

    Appeared 1x (2025)

  17. 7 Marks High Priority Asked: 2025

    Draw the functional block diagram of 8096, explain each block in detail, and explain how it is superior to 8051.

    Appeared 1x (2025)

  18. 7 Marks Medium Priority Asked: 2024

    Write about the control and status registers of the 8096 microcontroller.

    Appeared 1x (2024)

  19. 7 Marks Medium Priority Asked: 2023

    Explain the register arithmetic and logic unit (RALU) of the Intel 8096 microcontroller.

    Appeared 1x (2023)

  20. 7 Marks Medium Priority Asked: 2023

    Explain the I/O ports of the Intel 8096 microcontroller.

    Appeared 1x (2023)

  21. 7 Marks Low Priority Asked: 2022, 2020

    Give the classification of the 8096 instruction set and explain with examples.

    Appeared 2x (2022, 2020)

  22. 7 Marks High Priority Asked: 2025, 2024, 2023

    Explain and compare the types of processors used in embedded systems: general-purpose, application-specific, and single-purpose processors.

    Appeared 3x (2025, 2024, 2023)

  23. 7 Marks High Priority Asked: 2024, 2023, 2022, 2020

    Explain the characteristics and quality attributes of embedded systems.

    Appeared 4x (2024, 2023, 2022, 2020)

  24. 7 Marks High Priority Asked: 2025, 2022

    Give detailed classification of embedded systems with industrial examples / applications.

    Appeared 2x (2025, 2022)

  25. 7 Marks High Priority Asked: 2025

    Define an embedded system, how it differs from a general-purpose system, and explain its characteristics and quality attributes.

    Appeared 1x (2025)

  26. 7 Marks High Priority Asked: 2023, 2022

    How does an embedded system differ from a general-purpose computing system, and what are its major application areas?

    Appeared 2x (2023, 2022)

  27. 8 Marks Medium Priority Asked: 2024, 2020

    Differentiate / explain the differences between general computing systems and embedded systems.

    Appeared 2x (2024, 2020)

  28. 6 Marks Medium Priority Asked: 2024, 2020

    What is / define an embedded system and what are its common applications?

    Appeared 2x (2024, 2020)

  29. 7 Marks Medium Priority Asked: 2023

    What are design metrics? Explain the design metrics of an embedded system.

    Appeared 1x (2023)

  30. 7 Marks High Priority Asked: 2024, 2022

    Compare CISC and RISC architectures in detail.

    Appeared 2x (2024, 2022)

  31. 7 Marks High Priority Asked: 2024, 2022

    Differentiate / compare Von Neumann architecture vs Harvard architecture.

    Appeared 2x (2024, 2022)

  32. 7 Marks High Priority Asked: 2025, 2020

    Explain what DSP processors are, their operating principle, special features compared to general-purpose processors, role and applications in embedded systems.

    Appeared 2x (2025, 2020)

  33. 7 Marks High Priority Asked: 2025

    Describe the architecture of the ARM processor, its RISC features and use in mobile embedded systems.

    Appeared 1x (2025)

  34. 7 Marks Medium Priority Asked: 2023

    Explain the Harvard architecture with a neat diagram.

    Appeared 1x (2023)

  35. 7 Marks Medium Priority Asked: 2023

    What is an instruction set and what is RISC with examples?

    Appeared 1x (2023)

  36. 7 Marks Low Priority Asked: 2022

    Write a combined short note on ARM and DSP processors.

    Appeared 1x (2022)

  37. 7 Marks High Priority Asked: 2025, 2024, 2023

    What is a watchdog timer, how does it work / improve reliability, with example and timing diagram?

    Appeared 3x (2025, 2024, 2023)

  38. 7 Marks High Priority Asked: 2025, 2023

    Explain the working of the 8279 keyboard controller with internal block diagram, including key scanning, debouncing and processing

    Appeared 2x (2025, 2023)

  39. 14 Marks High Priority Asked: 2025

    Write short notes on interrupt controllers, 16-bit PIC and 32-bit dsPIC microcontrollers, Von Neumann vs Harvard architecture (any two).

    Appeared 1x (2025)

  40. 7 Marks Medium Priority Asked: 2024

    What is an interrupt, how does a microprocessor check for it, and what are its types?

    Appeared 1x (2024)

  41. 7 Marks Low Priority Asked: 2022

    Draw and explain the functional block diagram of an interrupt controller and each block.

    Appeared 1x (2022)

  42. 7 Marks Low Priority Asked: 2022

    Explain the different modes of the keyboard controller with examples

    Appeared 1x (2022)

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