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Home ‣ Digital Electronics ‣ The 8051 Microcontroller See What Others Are Saying!
- Question
The 8051 can handle ________ interrupt sources.
Options- A. 3
- B. 4
- C. 5
- D. 6
- Correct Answer
- 5
ExplanationThere are five interrupt sources for the 8051, which means that they can recognize 5 different events that can interrupt regular program execution. Each interrupt can be enabled or disabled by setting bits of the IE register. Likewise, the whole interrupt system can be disabled by clearing the EA bit of the same register. - 1. How many bits are in an ASCII character?
Options- A. 16
- B. 8
- C. 7
- D. 4 Discuss
- 2. A pulse has a period of 15 ms. Its frequency is ________.
Options- A. 6.66 Hz
- B. 66.66 Hz
- C. 666.66 Hz
- D. 15 Hz Discuss
- 3. The Power PC can effectively execute up to ten instructions per clock cycle.
Options- A. True
- B. False Discuss
- 4. A byte has 8 bits.
Options- A. True
- B. False Discuss
- 5. A popular waveform generator is the Johnson shift counter.
Options- A. True
- B. False Discuss
- 6. An ADC is an analog-to-digital converter.
Options- A. True
- B. False Discuss
- 7. An inverter performs a NOT operation.
Options- A. True
- B. False Discuss
- 8. Antifuse devices are volatile.
Options- A. True
- B. False Discuss
- 9. Address multiplexing is used to reduce the number of address lines.
Options- A. True
- B. False Discuss
- 10. Which type of ROM has to be custom built by the factory?
Options- A. ROM
- B. mask ROM
- C. EPROM
- D. EEPROM Discuss
More questions
Correct Answer: 7
Correct Answer: 66.66 Hz
Correct Answer: False
Correct Answer: True
Correct Answer: True
Correct Answer: True
Correct Answer: True
Correct Answer: False
Correct Answer: True
Correct Answer: mask ROM
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