P89LPC9321FDH,518 datasheet by NXP Semiconductors

P89LPC9321FDH,518 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for P89LPC9321FDH,518?
  The recommended operating voltage range for P89LPC9321FDH,518 is 2.4V to 3.6V.
• How do I configure the oscillator for the P89LPC9321FDH,518?
  The oscillator can be configured using the OSCCFG register. The oscillator frequency can be set to 12 MHz, 14.7456 MHz, or 18.432 MHz. Additionally, the oscillator can be bypassed using an external clock source.
• What is the maximum clock frequency for the P89LPC9321FDH,518?
  The maximum clock frequency for the P89LPC9321FDH,518 is 18.432 MHz.
• How do I use the UART on the P89LPC9321FDH,518?
  The UART on the P89LPC9321FDH,518 can be used by configuring the UART registers (U0CSR, U0GCR, U0BAUD, and U0BUF). The UART can operate in asynchronous mode, and the baud rate can be set using the U0BAUD register.
• What is the purpose of the watchdog timer on the P89LPC9321FDH,518?
  The watchdog timer on the P89LPC9321FDH,518 is used to reset the microcontroller in case of a software fault or hang. The watchdog timer can be enabled or disabled using the WDTCSR register, and the timeout period can be set using the WDTPR and WDTCR registers.