The MC908AP32CFBER can operate from -40°C to 105°C, but it's recommended to operate within -20°C to 85°C for optimal performance.
The internal clock source can be configured using the Clock Generator Module (CGM) registers. You need to set the clock source, divider, and multiplier values according to your application requirements.
The maximum frequency for the external crystal oscillator is 20 MHz. However, it's recommended to use a crystal with a frequency between 3 MHz and 16 MHz for optimal performance.
The watchdog timer can be enabled by setting the WDE bit in the COPCTL register. You also need to configure the watchdog timer period and timeout values according to your application requirements.
The maximum current consumption of the MC908AP32CFBER is around 25 mA at 5V and 20 MHz clock frequency. However, this value can vary depending on the operating mode, clock frequency, and peripheral usage.