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Microprocessors & Microcontrollers8051 Serial Communication

Which 8051 register is primarily used to configure the serial port mode and contains serial status/control bits?

  • ASCON
  • BTMOD
  • CDPTR
  • DSP
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Correct Answer: A. SCON
Explanation: SCON is the Serial Control register and contains serial mode, receive-enable and transmit/receive flag bits.
Reference: Standard microprocessors and microcontrollers: 8051 serial communication
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