USB 2.0 Device: 12 Mbps, up to 8 bidirectional Endpoints and Multi-packet Ping-pong Mode. On-Chip Transceiver
One USART with ISO7816, IrDA®, RS-485, SPI, Manchester and LIN Mode
Three USART with SPI Mode
One PicoUART for extended UART wake-up capabilities in all sleep modes
Windowed Watchdog Timer (WDT)
Asynchronous Timer (AST) with Real-time Clock Capability, Counter or Calendar Mode Supported
Frequency Meter (FREQM) for Accurate Measuring of Clock Frequency
Three 16-bit Timer/Counter (TC) Channels with capture, waveform, compare and PWM mode
One Master/Slave Serial Peripheral Interface (SPI) with Chip Select Signals
Four Master and Two Slave Two-wire Interfaces (TWI), up to 3.4Mbit/s I2C-compatible
Capacitive Touch Module (CATB) supporting up to 32 buttons
Inter-IC Sound (IISC) Controller, Compliant with Inter-IC Sound (I2S) Specification
Peripheral Event System for Direct Peripheral to Peripheral Communication
Parallel Capture Module (PARC)
Glue Logic Controller (GLOC)
I/O