MC9S08AC128CFGE datasheet by Freescale Semiconductor

MC9S08AC128CFGE Frequently Asked Questions (FAQs)

• What is the maximum clock frequency of the MC9S08AC128CFGE?
  The maximum clock frequency of the MC9S08AC128CFGE is 20 MHz.
• How do I configure the internal clock source of the MC9S08AC128CFGE?
  The internal clock source of the MC9S08AC128CFGE can be configured using the SYNR and REFS registers in the System Options Register (SOR) module.
• What is the purpose of the COP (Computer Operating Properly) module in the MC9S08AC128CFGE?
  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 in the MC9S08AC128CFGE?
  The ADC module in the MC9S08AC128CFGE can be used by configuring the ADCSC1 and ADCSC2 registers, selecting the analog input channel, and initiating a conversion using the ADGO bit.
• What is the purpose of the SCI (Serial Communication Interface) module in the MC9S08AC128CFGE?
  The SCI module is a serial communication interface that allows the microcontroller to communicate with external devices using asynchronous serial communication protocols such as UART, SPI, and I2C.