Features

Full-duplex operation
Asynchronous (with clock reconstruction) or synchronous operation
Internal or external clock source for asynchronous and synchronous operation
Baud-rate generator
Supports serial frames with 5, 6, 7, 8 or 9 data bits and 1 or 2 stop bits
Odd or even parity generation and parity check
Selectable LSB- or MSB-first data transfer
Buffer overflow and frame error detection
Noise filtering, including false start-bit detection and digital low-pass filter
Collision detection
Can operate in all sleep modes
Operation at speeds up to half the system clock for internally generated clocks
Operation at speeds up to the system clock for externally generated clocks
RTS and CTS flow control
IrDA modulation and demodulation up to 115.2kbps
LIN master support
LIN slave support
- Auto-baud and break character detection
RS485 Support
Start-of-frame detection
Can work with DMA

USART Features