MC9S08MM32AVLH datasheet by Freescale Semiconductor

MC9S08MM32AVLH Frequently Asked Questions (FAQs)

• What is the maximum clock frequency of the MC9S08MM32AVLH?
  The maximum clock frequency of the MC9S08MM32AVLH is 20 MHz, but it can be overclocked to 24 MHz with some limitations.
• How do I configure the internal oscillator on the MC9S08MM32AVLH?
  The internal oscillator on the MC9S08MM32AVLH can be configured using the OSCCLK and OSCST registers. The oscillator frequency can be set to 4 MHz, 8 MHz, or 16 MHz, and the oscillator startup time can be adjusted using the OSCST register.
• What is the maximum amount of current that the MC9S08MM32AVLH can source or sink on its I/O pins?
  The maximum amount of current that the MC9S08MM32AVLH can source or sink on its I/O pins is 25 mA per pin, with a total current limit of 100 mA for all I/O pins combined.
• How do I use the ADC on the MC9S08MM32AVLH?
  The ADC on the MC9S08MM32AVLH is a 12-bit successive approximation ADC. It can be configured using the ADCSC1 and ADCSC2 registers, and the conversion result can be read from the ADCRH and ADCRL registers. The ADC can operate in single-shot mode or continuous conversion mode.
• What is the purpose of the COP (Computer Operating Properly) timer on the MC9S08MM32AVLH?
  The COP timer on the MC9S08MM32AVLH is a watchdog timer that resets the microcontroller if it does not receive a refresh signal within a certain time period. This is used to prevent the microcontroller from running away or getting stuck in an infinite loop.