Datasheet

Functional overview STM32F373xx
26/137 DocID022691 Rev 7
3.20 Universal synchronous/asynchronous receiver transmitter
(USART)
The STM32F373xx embeds three universal synchronous/asynchronous receiver
transmitters (USART1, USART2 and USART3).
All USARTs interfaces are able to communicate at speeds of up to 9 Mbit/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, Smartcard mode (ISO/IEC 7816 compliant), autobaudrate feature
and have LIN Master/Slave capability. The USART interfaces can be served by the DMA
controller.
Refer to Table 8 for the features of USART1, USART2 and USART3.
SMBus X X
Wakeup from STOP X X
1. X = supported.
Table 7. STM32F373xx I
2
C implementation (continued)
I
2
C features
(1)
I2C1 I2C2
Table 8. STM32F373xx USART implementation
USART modes/features
(1)
1. X = supported.
USART1 USART2 USART3
Hardware flow control for modem X X X
Continuous communication using DMA X X X
Multiprocessor communication X X X
Synchronous mode X X X
Smartcard mode X X X
Single-wire half-duplex communication X X X
IrDA SIR ENDEC block X X X
LIN mode X X X
Dual clock domain and wakeup from Stop mode X X X
Receiver timeout interrupt X X X
Modbus communication X X X
Auto baud rate detection X X X
Driver Enable X X X
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