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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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STM32H747AI Scheda tecnica(PDF) 49 Page - STMicroelectronics |
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STM32H747AI Scheda tecnica(HTML) 49 Page - STMicroelectronics |
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49 / 252 page  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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