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STM8AL3LE8x Datasheet(PDF) 25 Page - STMicroelectronics |
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STM8AL3LE8x Datasheet(HTML) 25 Page - STMicroelectronics |
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25 / 133 page  DocID027180 Rev 5 25/133 STM8AL31E8x STM8AL3LE8x Functional overview 61 3.17.3 USART The USART interfaces (USART1, USART2 and USART3) allow full duplex, asynchronous communications with external devices requiring an industry standard NRZ asynchronous serial data format. It offers a very wide range of baud rates. • 1 Mbit/s full duplex SCI • SPI1 emulation • High precision baud rate generator • Smartcard emulation • IrDA SIR encoder decoder • Single wire half duplex mode Note: USART1, USART2 and USART3 can be served by the DMA1 Controller. USART interfaces are used to implement LIN slave communication, with LIN Break detection on the framing error flag (FE in USART_SR register) with a value of 0 in the USART data register (USART_DR). 3.18 Infrared (IR) interface The high-density STM8AL3xE8x devices contain an infrared interface which is used with an IR LED for remote control functions. Two timer output compare channels are used to generate the infrared remote control signals. 3.19 Development support Development tools Development tools for the STM8 microcontrollers include: • The STice emulation system offering tracing and code profiling • The STVD high-level language debugger including C compiler, assembler and integrated development environment • The STVP Flash programming software The STM8 also comes with starter kits, evaluation boards and low-cost in-circuit debugging/programming tools. Single wire data interface (SWIM) and debug module The debug module with its single wire data interface (SWIM) permits non-intrusive real-time in-circuit debugging and fast memory programming. The Single wire interface is used for direct access to the debugging module and memory programming. The interface is activated in all device operation modes. The non-intrusive debugging module features a performance close to a full-featured emulator. Beside memory and peripherals, CPU operation is also monitored in real-time by means of shadow registers. |
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