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
3. This program code will be executed continuously: STAT: MOV A, #01H JNZ STAT
- TRUE
- FALSE
5. The address space of the 8051 is divided into four distinct areas: internal data, external data, internal code, and external code.
- TRUE
- FALSE
6. Data transfer from I/O to external data memory can only be done with the MOVX command.
- TRUE
- FALSE
8. The special function registers are maintained in the next 128 locations after the general-purpose data storage and stack.
- TRUE
- FALSE
9. This statement will set the address of the bit to 1 (8051 Micro-controller): SETB 01H
- TRUE
- FALSE
10. MOV A, @ R1 will:
- copy R1 to the accumulator
- copy the accumulator to R1
- copy the contents of memory whose address is in R1 to the accumulator
- copy the accumulator to the contents of memory whose address is in R1