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Microprocessors & Microcontrollers8051 Interrupts

The classic 8051 provides how many standard interrupt sources?

  • A3
  • B5
  • C8
  • D16
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Correct Answer: B. 5
Explanation: The standard 8051 has five interrupt sources: external 0, Timer 0, external 1, Timer 1 and serial port.
Reference: Standard microprocessors and microcontrollers: 8051 interrupts
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