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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32U5A5QJ датащи(PDF) 90 Page - STMicroelectronics |
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STM32U5A5QJ датащи(HTML) 90 Page - STMicroelectronics |
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90 / 382 page  Functional overview STM32U5Axxx 90/382 DS13543 Rev 1 3.50.1 Universal synchronous/asynchronous receiver transmitter (USART/UART) The USART offers a flexible means to perform full-duplex data exchange with external equipments requiring an industry standard NRZ asynchronous serial data format. A very wide range of baud rates can be achieved through a fractional baud rate generator. The USART supports both synchronous one-way and half-duplex single-wire communications, as well as LIN (local interconnection network), Smartcard protocol, IrDA (infrared data association) SIR ENDEC specifications, and modem operations (CTS/RTS). Multiprocessor communications are also supported. High-speed data communications up to 20 Mbauds are possible by using the DMA (direct memory access) for multibuffer configuration. The USART main features are: • Full-duplex asynchronous communication • NRZ standard format (mark/space) • Configurable oversampling method by 16 or 8 to achieve the best compromise between speed and clock tolerance • Baud rate generator systems Table 22. USART, UART and LPUART features USART modes/features(1) 1. X = supported. USART1/2/3/6 UART4/5 LPUART1 Hardware flow control for modem X X X Continuous communication using DMA X X X Multiprocessor communication X X X Synchronous mode (master/slave) X - - Smartcard mode X - - Single-wire half-duplex communication X X X IrDA SIR ENDEC block X X - LIN mode X X - Dual-clock domain and wake-up from Stop mode X(2) 2. Wake-up supported from Stop 0 and Stop 1 modes. X(2) X(3) 3. Wake-up supported from Stop 0, Stop 1 and Stop 2 modes. Receiver timeout interrupt X X - Modbus communication X X - Auto-baud rate detection X X - Driver enable X X X USART data length 7, 8 and 9 bits Tx/Rx FIFO X X X Tx/Rx FIFO size 8 bytes Autonomous mode X X X |
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