Discussion
Home ‣ Digital Electronics ‣ The 8051 Microcontroller See What Others Are Saying!
- Question
An alternate function of port pin P3.4 in the 8051 is:
Options- A. Timer 0
- B. Timer 1
- C. interrupt 0
- D. interrupt 1
- Correct Answer
- Timer 0
- 1. Which type of ROM has to be custom built by the factory?
Options- A. ROM
- B. mask ROM
- C. EPROM
- D. EEPROM Discuss
- 2. The RST pin requires a HIGH to reset the 8051 microcontroller.
Options- A. True
- B. False Discuss
- 3. How many clock pulses will be required to completely load serially a 5-bit shift register?
Options- A. 2
- B. 3
- C. 4
- D. 5 Discuss
- 4. A data selector is also called a demultiplexer.
Options- A. True
- B. False Discuss
- 5. The ________ statement evaluates the variable status.
Options- A. IF/THEN
- B. IF/THEN/ELSE
- C. CASE
- D. ELSIF Discuss
- 6. A NAND gate output is LOW only if all the inputs are HIGH.
Options- A. True
- B. False Discuss
- 7. Edge-triggered flip-flops can be identified by the triangle on the clock input.
Options- A. True
- B. False Discuss
- 8. How many select lines would be required for an 8-line-to-1-line multiplexer?
Options- A. 2
- B. 3
- C. 4
- D. 8 Discuss
- 9. A(n)________ is not a functional unit of a computer.
Options- A. input unit
- B. memory unit
- C. modem
- D. control unit Discuss
- 10. A modulus-12 ring counter requires a minimum of ________.
Options- A. 10 flip-flops
- B. 12 flip-flops
- C. 6 flip-flops
- D. 2 flip-flops Discuss
More questions
Correct Answer: mask ROM
Correct Answer: True
Correct Answer: 5
Correct Answer: False
Correct Answer: IF/THEN
Correct Answer: True
Correct Answer: True
Correct Answer: 3
Correct Answer: modem
Correct Answer: 12 flip-flops
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