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STM32H747AI Datasheet(PDF) 49 Page - STMicroelectronics

Part # STM32H747AI
Description  Dual 32-bit Arm® Cortex®-M7 up to 480MHz and -M4 MCUs, up to 2MB Flash, 1MB RAM, 46 com. and analog interfaces, SMPS, DSI
PDF  252 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32H747AI Datasheet(HTML) 49 Page - STMicroelectronics

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DS12930 Rev 1
39/242
STM32H747xI/G
Functional overview
46
All USART have a clock domain independent from the CPU clock, allowing the USARTx to
wake up the MCU from Stop mode.The wakeup from Stop mode is programmable and can
be done on:
•
Start bit detection
•
Any received data frame
•
A specific programmed data frame
•
Specific TXFIFO/RXFIFO status when FIFO mode is enabled.
All USART interfaces can be served by the DMA controller.
3.33
Low-power universal asynchronous receiver transmitter
(LPUART)
The device embeds one Low-Power UART (LPUART1). The LPUART supports
asynchronous serial communication with minimum power consumption. It supports half
duplex single wire communication and modem operations (CTS/RTS). It allows
multiprocessor communication.
The LPUARTs embed a Transmit FIFO (TXFIFO) and a Receive FIFO (RXFIFO). FIFO
mode is enabled by software and is disabled by default.
Table 5. USART features
USART modes/features(1)
1. X = supported.
USART1/2/3/6
UART4/5/7/8
Hardware flow control for modem
X
X
Continuous communication using DMA
X
X
Multiprocessor communication
X
X
Synchronous mode (Master/Slave)
X
-
Smartcard mode
X
-
Single-wire Half-duplex communication
X
X
IrDA SIR ENDEC block
X
X
LIN mode
X
X
Dual clock domain and wakeup from low power mode
X
X
Receiver timeout interrupt
X
X
Modbus communication
X
X
Auto baud rate detection
X
X
Driver Enable
X
X
USART data length
7, 8 and 9 bits
Tx/Rx FIFO
X
X
Tx/Rx FIFO size
16



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