Up to six Serial Communication Interfaces (SERCOM), each configurable for various protocol.32-bit Real Time Counter (RTC) with clock/calendar function.12-channel Direct Memory Access Controller (DMAC).Two-pin Serial Wire Debug (SWD) programming, test and debugging interface.Internal clock 32.768 kHz (RTC), 48 MHz.Power-on Reset (POR) and Brown-out Detection (BOD).256 KB in-system self-programmable Flash.
ARM® Cortex®-M0+ CPU ATSAMD21G18A running at up to 48 MHz.
