The SAMD21 complex clock signal distribution system is designed to offer maximum flexibility and lets the programmer choose between performance and power consumption. The cperipherals that control the clock distribution...

SERCOM (SERial COMmunication interface) is the serial communication peripheral of the SAMD21. The SAMD21G18A has six peripheral instances (from SERCOM0 to SERCOM5) which can be configured to support USART, SPI...