STM32F303VC datasheet(26/148 Pages) STMICROELECTRONICS

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Functional overview

STM32F303xB STM32F303xC

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DocID023353 Rev 13

3.20

Universal synchronous/asynchronous receiver transmitter

(USART)

The STM32F303xB/STM32F303xC devices have three embedded universal

synchronous/asynchronous receiver transmitters (USART1, USART2 and USART3).

The USART interfaces are able to communicate at speeds of up to 9 Mbits/s.

They provide hardware management of the CTS and RTS signals, they support IrDA SIR

ENDEC, the multiprocessor communication mode, the single-wire half-duplex

communication mode and have LIN Master/Slave capability. The USART interfaces can be

served by the DMA controller.

3.21

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 8 for the features available in all U(S)ART interfaces.

SMBus

Wakeup from STOP

1. X = supported.

Table 7. STM32F303xB/STM32F303xC I2C implementation (continued)

I2C features(1)

I2C1

I2C2

Table 8. USART features

USART modes/features(1)

USART1

USART2

USART3

UART4

UART5

Hardware flow control for modem

Continuous communication using DMA

Multiprocessor communication

Synchronous mode

Smartcard mode

Single-wire half-duplex communication

IrDA SIR ENDEC block

LIN mode

Dual clock domain and wakeup from Stop mode

Receiver timeout interrupt

Modbus communication

Auto baud rate detection

Driver Enable

1. X = supported.

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