MC9S12D64CPVE datasheet by Freescale Semiconductor

MC9S12D64CPVE Frequently Asked Questions (FAQs)

• What is the maximum clock frequency of the MC9S12D64CPVE?
  The maximum clock frequency of the MC9S12D64CPVE is 25 MHz.
• How do I configure the internal clock oscillator?
  The internal clock oscillator can be configured using the CLKSEL register. The CLKSEL register is used to select the clock source and configure the clock frequency.
• What is the purpose of the VREFH and VREFL pins?
  The VREFH and VREFL pins are used to set the reference voltage for the analog-to-digital converter (ADC). VREFH sets the high reference voltage, and VREFL sets the low reference voltage.
• How do I use the watchdog timer?
  The watchdog timer can be enabled by setting the WDE bit in the WCR register. The watchdog timer can be configured to reset the microcontroller if it does not receive a 'kick' within a certain time period.
• What is the purpose of the COP (Computer Operating Properly) timer?
  The COP timer is a timer that resets the microcontroller if it does not receive a 'kick' within a certain time period. It is used to ensure that the microcontroller is operating properly and to prevent runaway code.