The SAM L10/L11 support two different performance levels: PL0 and PL2.
The default performance level after reset is PL0. This performance level is aiming for the lowest power consumption by limiting logic speeds and CPU frequency. As a consequence, some peripherals and clock sources will work with limited capabilities.
Full device functionality and performance will be ensured with PL2 mode.
Please refer to the Electrical Characteristics sections for more information.