23.4.1.1 Configure the Clock CLK_RTC
To configure the CLK_RTC, follow these steps:
- Configure the desired oscillator to operate as required, in the Clock Controller (CLKCTRL) peripheral.
- Write the Clock Select (CLKSEL) bit field in the Clock Selection (RTC.CLKSEL) register accordingly.
The CLK_RTC clock configuration is used by both RTC and PIT functionalities.