P89LPC917FDH,129 datasheet by NXP Semiconductors

P89LPC917FDH,129 Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the P89LPC917FDH,129?
  The maximum clock frequency is 12 MHz, but it can be overclocked up to 18 MHz with some limitations.
• How do I configure the oscillator settings for the P89LPC917FDH,129?
  The oscillator settings can be configured using the OSCCFG register. The register settings depend on the crystal frequency and the desired clock frequency.
• What is the purpose of the watchdog timer in the P89LPC917FDH,129?
  The watchdog timer is used to reset the microcontroller in case of a software fault or hang-up. It can be enabled or disabled using the WDTE bit in the WDTMOD register.
• How do I use the UART interface on the P89LPC917FDH,129?
  The UART interface can be used for serial communication. The UART registers (SCON, SBUF, and SCONVert) need to be configured properly to set the baud rate, data bits, and stop bits.
• What is the maximum current that can be sourced or sunk by the I/O pins of the P89LPC917FDH,129?
  The maximum current that can be sourced or sunk by the I/O pins is 20 mA. However, the total current sourced or sunk by all I/O pins should not exceed 100 mA.