Universal Synchronous Receiver Transmitter (Usart) /Universal Asynchronous Receiver Transmitter (Uart); Usart Introduction - ST STM32F412 Reference Manual

Universal synchronous receiver transmitter (USART) /universal asynchronous receiver transmit-
25 Universal synchronous receiver transmitter (USART)
/universal asynchronous receiver transmitter (UART)
25.1

USART introduction

The universal synchronous asynchronous receiver transmitter (USART) offers a flexible
means of full-duplex data exchange with external equipment requiring an industry standard
NRZ asynchronous serial data format. The USART offers a very wide range of baud rates
using a fractional baud rate generator.
It supports synchronous one-way communication and half-duplex single wire
communication. It also supports the LIN (local interconnection network), Smartcard Protocol
and IrDA (infrared data association) SIR ENDEC specifications, and modem operations
(CTS/RTS). It allows multiprocessor communication.
High speed data communication is possible by using the DMA for multibuffer configuration.
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