The maximum clock frequency that can be used with the internal oscillator is 32 MHz.
To configure the ADC to convert analog signals from multiple channels, you need to use the ADC's scan mode. In this mode, the ADC automatically switches between multiple channels and converts the analog signals. You can configure the ADC scan mode by setting the ADC_SC2 register.
The COP watchdog timer is used to monitor the operation of the microcontroller and reset it if it fails to respond within a specified time period. This is useful in applications where the microcontroller needs to recover from a fault or error condition.
To use the DMA controller to transfer data between peripherals, you need to configure the DMA channel to transfer data between the source and destination peripherals. You can do this by setting the DMA_SOFF, DMA_SSIZE, and DMA_DADDR registers.
The maximum amount of current that can be sourced or sunk by the GPIO pins is 25 mA.