MC9S08AC32CFGER datasheet by Freescale Semiconductor

MC9S08AC32CFGER Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the internal oscillator?
  The maximum clock frequency that can be used with the internal oscillator is 16 MHz, but it's recommended to use 8 MHz or lower for optimal performance and to minimize power consumption.
• How do I configure the watchdog timer to reset the MCU in case of a fault?
  To configure the watchdog timer, you need to set the WDTCLK register to select the clock source, set the WDTCNT register to set the timeout period, and enable the watchdog timer by setting the WDTEN bit in the WDTCTL register.
• Can I use the ADC in differential mode with an external reference voltage?
  Yes, the ADC can be used in differential mode with an external reference voltage. You need to configure the ADC to use an external reference voltage by setting the ADICLK register and selecting the correct input channels.
• How do I implement a low-power mode to reduce power consumption?
  To implement a low-power mode, you can use the STOP or WAIT instructions to put the MCU in a low-power state. You can also use the Bit Manipulation (BM) module to control the power modes of individual peripherals.
• 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 or less to ensure reliable operation and to prevent damage to the MCU.