SC16C654BIB64,151 datasheet by NXP Semiconductors

SC16C654BIB64,151 Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the SC16C654BIB64?
  The maximum operating frequency of the SC16C654BIB64 is 5 MHz.
• How do I configure the UART for 9-bit data transmission?
  To configure the UART for 9-bit data transmission, set the MCR register to enable 9-bit mode, and configure the UART to use 9 data bits, 1 stop bit, and no parity.
• What is the purpose of the nRTS and nCTS signals?
  The nRTS (Request to Send) and nCTS (Clear to Send) signals are used for hardware flow control. nRTS is an output signal that indicates the UART is ready to receive data, and nCTS is an input signal that indicates the remote device is ready to receive data.
• How do I handle FIFO overflow and underflow conditions?
  To handle FIFO overflow and underflow conditions, implement a FIFO management strategy using the UART's interrupt capabilities and FIFO status registers. This can include setting up interrupts for FIFO threshold levels, and implementing software flow control to prevent overflow and underflow.
• What is the recommended power-up and power-down sequence for the SC16C654BIB64?
  The recommended power-up sequence is to apply power to VCC, then VDD, and finally the input signals. For power-down, reverse the sequence: remove input signals, then VDD, and finally VCC.