MC9S08QE128CFT datasheet by Freescale Semiconductor

MC9S08QE128CFT Frequently Asked Questions (FAQs)

• What is the maximum clock frequency of the MC9S08QE128CFT?
  The maximum clock frequency of the MC9S08QE128CFT is 20 MHz.
• How do I configure the internal clock source of the MC9S08QE128CFT?
  The internal clock source of the MC9S08QE128CFT 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 MC9S08QE128CFT?
  The COP module is a watchdog timer that resets the microcontroller if it does not receive a 'service' pulse within a specified time period, indicating that the microcontroller is not operating properly.
• How do I use the ADC (Analog-to-Digital Converter) module in the MC9S08QE128CFT?
  The ADC module in the MC9S08QE128CFT can be used by configuring the ADCSC1 and ADCSC2 registers, selecting the desired analog input channel, and initiating a conversion using the ADGO bit.
• What is the purpose of the SCI (Serial Communication Interface) module in the MC9S08QE128CFT?
  The SCI module is a serial communication interface that allows the microcontroller to communicate with other devices using asynchronous serial communication protocols such as UART, SPI, and I2C.