logo

CuriousTab

CuriousTab

Discussion


Home Digital Electronics The 8051 Microcontroller Comments

  • Question
  • A microcontroller is called a computer on a chip.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 


  • The 8051 Microcontroller problems


    Search Results


    • 1. The ADC 0804 is an analog-to-digital converter that provides 8-bit output resolution that can be directly interfaced to a microcontroller.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. A Celsius thermometer is an application for the 8051 microcontroller.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. Analog output current must be converted into a usable voltage. To perform this current-to-voltage conversion a 700 op amp may be used.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. Writing counter/loop programs is much more difficult with the introduction of the DJNA and the CJNE instructions.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. In an 8051 program DA A adjusts the value in the accumulator resulting from an addition into two BCDs.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. A positive binary number is represented by a 1 sign bit.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. Digital systems operate only on discrete digits that represent numbers, letters, or symbols.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. Manufacturers of computers utilize 3-bit codes to indicate operations or instructions.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. A parity bit is used to detect an error in data transmission caused by noise.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. The ASCII code is a special code that represents all alphanumeric data.

    • Options
    • A. True
    • B. False
    • Discuss


    Comments

    There are no comments.

Enter a new Comment