SAMD21RT
features
: In-system programmable Flash, 12-channel Direct Memory Access Controller (DMAC), 12-channel Event System, programmable Interrupt Controller, 52 programmable I/O pins, 32-bit Real-Time Clock and Calendar (RTC), five 16-bit Timer/Counters (TC) and four 24-bit Timer/Counters for Control (TCC), where each TC can be configured to perform frequency and waveform generation, accurate program execution timing or input capture with time and frequency measurement of digital signals. The TCs can operate in 8-bit or 16-bit mode, selected TCs can be cascaded to form a 32-bit TC, and three timer/counters have extended functions optimized for motor, lighting, and other control applications. The series provide one full-speed USB 2.0 embedded host and device interface; six Serial munication Modules (SER) that each can be configured to act as an USART, UART, SPI, I2C up to 3.4 MHz, SMBus, PMBus, and LIN client; two-channel I2S interface; twenty-channel 350 ksps 12-bit ADC with programmable...
