The 8051 Microcontroller Questions and Answers
The 8051 Microcontroller questions with answers provide a comprehensive overview of microcontroller architecture, instruction sets, and I/O programming. These programming questions and answers are key for embedded systems interviews and ECE placements in companies like TCS, DRDO, and Intel. Each question explores the working principles of timers, interrupts, and serial communication in 8051. Practicing these MCQs enhances your embedded system knowledge and coding efficiency in assembly and C languages.
The 8051 Microcontroller
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59 questions
51. A Celsius thermometer is an application for the 8051 microcontroller.
- TRUE
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54. In an 8051 program DA A adjusts the value in the accumulator resulting from an addition into two BCDs.
- TRUE
- FALSE
55. Different instruction sets must make up for the various members of the 8051 family.
- TRUE
- FALSE
56. The ADC 0804 is an analog-to-digital converter that provides 8-bit output resolution that can be directly interfaced to a microcontroller.
- TRUE
- FALSE
57. Writing counter/loop programs is much more difficult with the introduction of the DJNA and the CJNE instructions.
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- FALSE
58. The 8051 is a 40-pin IC. Twenty-two pins are needed for the four I/O ports.
- TRUE
- FALSE
59. Up to 65K of code memory and 65K of data memory can be added to any of the 8051 family members.
- TRUE
- FALSE