logo

CuriousTab

CuriousTab

Discussion


Home Digital Electronics The 8051 Microcontroller Comments

  • Question
  • In an 8051 program DA A adjusts the value in the accumulator resulting from an addition into two BCDs.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 


  • The 8051 Microcontroller problems


    Search Results


    • 1. Up to 65K of code memory and 65K of data memory can be added to any of the 8051 family members.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. The RST pin requires a HIGH to reset the 8051 microcontroller.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. Different instruction sets must make up for the various members of the 8051 family.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. The 8051 is a 40-pin IC. Twenty-two pins are needed for the four I/O ports.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. A monostable multivibrator is commonly called a two shot.

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

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. 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
    • 8. A Celsius thermometer is an application for the 8051 microcontroller.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. 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
    • 10. A microcontroller is called a computer on a chip.

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


    Comments

    There are no comments.

Enter a new Comment