DS89C387TMEAX/NOPB datasheet by Texas Instruments

DS89C387TMEAX/NOPB Frequently Asked Questions (FAQs)

• What is the recommended oscillator crystal frequency for this microcontroller?
  The recommended oscillator crystal frequency for the DS89C387TMEAX/NOPB is 12 MHz or 24 MHz, depending on the application requirements.
• How do I configure the watchdog timer (WDT) on this device?
  The WDT on the DS89C387TMEAX/NOPB can be configured using the WDTCON register. The WDT can be enabled or disabled, and the timeout period can be set to one of several predefined values using the WDTCON register bits.
• What is the maximum current that can be sourced or sunk by the I/O pins?
  The maximum current that can be sourced or sunk by the I/O pins of the DS89C387TMEAX/NOPB is 25 mA per pin, with a total current limit of 100 mA for all I/O pins combined.
• How do I use the built-in UART on this device?
  The UART on the DS89C387TMEAX/NOPB can be configured using the UARTCON register. The baud rate, data bits, parity, and stop bits can be set using the UARTCON register bits. The UART transmit and receive buffers can be accessed using the UARTTX and UARTRX registers, respectively.
• What is the power consumption of this device in sleep mode?
  The power consumption of the DS89C387TMEAX/NOPB in sleep mode is typically around 10 μA, depending on the specific sleep mode and the state of the peripherals.