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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F479AI датащи(PDF) 40 Page - STMicroelectronics |
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STM32F479AI датащи(HTML) 40 Page - STMicroelectronics |
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40 / 217 page  Functional overview STM32F479xx 40/217 DocID028010 Rev 3 USART1, USART2, USART3 and USART6 also provide hardware management of the CTS and RTS signals, Smart Card mode (ISO 7816 compliant) and SPI-like communication capability. All interfaces can be served by the DMA controller. 2.27 Serial peripheral interface (SPI) The devices feature up to six SPIs in slave and master modes in full-duplex and simplex communication modes. SPI1, SPI4, SPI5, and SPI6 can communicate at up to 45 Mbits/s, SPI2 and SPI3 can communicate at up to 22.5 Mbit/s. The 3-bit prescaler gives 8 master mode frequencies and the frame is configurable to 8 bits or 16 bits. The hardware CRC generation/verification supports basic SD Card/MMC modes. All SPIs can be served by the DMA controller. The SPI interface can be configured to operate in TI mode for communications in master mode and slave mode. Table 8. USART feature comparison(1) Name Standard features Modem (RTS/CTS) LIN SPI master irDA Smartcard (ISO 7816) Max. baud rate in Mbit/s APB mapping Oversampling by 16 Oversampling by 8 USART1 X X X X X X 5.62 11.25 APB2 (max. 90 MHz) USART2 X X X X X X 2.81 5.62 APB1 (max. 45 MHz) USART3 X X X X X X 2.81 5.62 APB1 (max. 45 MHz) UART4 X - X - X - 2.81 5.62 APB1 (max. 45 MHz) UART5 X - X - X - 2.81 5.62 APB1 (max. 45 MHz) USART6 X X X X X X 5.62 11.25 APB2 (max. 90 MHz) UART7 X - X - X - 2.81 5.62 APB1 (max. 45 MHz) UART8 X - X - X - 2.81 5.62 APB1 (max. 45 MHz) 1. X = feature supported. |
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