Internal Load Capacitor Removed

In SAM L21A there was an internal load capacitor equivalent to 7pF in the External 32kHz Crystal Oscillator (XOSC32K). This capacitor has been removed in SAM L21B.

If an external crystal is used in a PCB designed with the SAM L21A, the calculation for external load capacitors needs to be redone, accounting for the removed internal load capacitance.