MC9S08AC128CLKE datasheet by Freescale Semiconductor

MC9S08AC128CLKE Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the MC9S08AC128CLKE?
  The maximum operating frequency of the MC9S08AC128CLKE is 20 MHz, but it can be overclocked to 24 MHz with some limitations.
• How do I configure the internal clock source?
  The internal clock source can be configured using the SYNR and REFS registers. The SYNR register sets the clock source, and the REFS register sets the clock frequency.
• What is the purpose of the VLLS (Very Low Leakage Stop) mode?
  The VLLS mode is a low-power mode that reduces power consumption to a minimum. It is used to save power when the device is not in use, and can be used in conjunction with other low-power modes.
• How do I use the ADC (Analog-to-Digital Converter) module?
  The ADC module can be used to convert analog signals to digital values. The ADC can be configured using the ADCSC1 and ADCSC2 registers, and the conversion 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 this can be limited by the device's power supply and the external circuitry.