MC9S08GW64CLH datasheet by Freescale Semiconductor

MC9S08GW64CLH Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the MC9S08GW64CLH?
  The maximum operating frequency of the MC9S08GW64CLH is 20 MHz, but it can be overclocked to 24 MHz with reduced voltage and temperature range.
• How do I configure the internal clock source?
  The internal clock source can be configured using the SYNR and REFS registers in the System Options Register (SOR). The SYNR register sets the clock source, and the REFS register sets the clock frequency.
• What is the purpose of the COP (Computer Operating Properly) module?
  The COP module is a watchdog timer that monitors the microcontroller's operation and resets it if it fails to respond within a specified time period, ensuring that the system operates properly and preventing lockups or hangs.
• How do I use the ADC (Analog-to-Digital Converter) module?
  The ADC module can be used by configuring the ADCSC1 and ADCSC2 registers to select the analog input channel, conversion mode, and clock source. The ADC result can be read from the ADCRH and ADCRL registers.
• What is the maximum current that can be sourced or sunk by the GPIO pins?
  The maximum current that can be sourced or sunk by the GPIO pins is 25 mA, but it's recommended to limit the current to 10 mA to ensure reliable operation and prevent overheating.