Datasheet

Functional overview STM32F303xB STM32F303xC
26/133 DocID023353 Rev 7
3.20 Universal asynchronous receiver transmitter (UART)
The STM32F303xB/STM32F303xC devices have 2 embedded universal asynchronous
receiver transmitters (UART4, and UART5). The UART interfaces support IrDA SIR
ENDEC, multiprocessor communication mode and single-wire half-duplex communication
mode. The UART4 interface can be served by the DMA controller.
Refer to Table 6 for the features available in all U(S)ART interfaces.
Table 6. USART features
USART modes/features
(1)
USART1 USART2 USART3 UART4 UART5
Hardware flow control for modem X X X
Continuous communication using DMA X X X X
Multiprocessor communication X X X X X
Synchronous mode X X X
Smartcard mode X X X
Single-wire half-duplex communication X X X X X
IrDA SIR ENDEC block X X X X X
LIN mode XXXXX
Dual clock domain and wakeup from Stop mode X X X X X
Receiver timeout interrupt XXXXX
Modbus communication X X X X X
Auto baud rate detection X X X
Driver Enable X X X
1. X = supported.