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STM8AL3136 数据表(PDF) 23 Page - STMicroelectronics |
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STM8AL3136 数据表(HTML) 23 Page - STMicroelectronics |
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23 / 124 page  DocID18474 Rev 7 23/124 STM8AL313x/4x/6x STM8AL3L4x/6x Functional overview 54 3.16.2 I²C The I2C bus interface (I2C1) provides multi-master capability, and controls all I²C bus- specific sequencing, protocol, arbitration and timing. • Master, slave and multi-master capability • Standard mode up to 100 kHz and fast speed modes up to 400 kHz • 7-bit and 10-bit addressing modes • SMBus 2.0 and PMBus support • Hardware CRC calculation Note: I2C1 can be served by the DMA1 Controller. 3.16.3 USART The USART interface (USART1) allows 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 can be served by the DMA1 Controller. USART1 can be 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). 3.17 Infrared (IR) interface The medium-density STM8AL313x/4x/6x and STM8AL3L4x/6x devices contain an infrared interface which can be used with an IR LED for remote control functions. Two timer output compare channels are used to generate the infrared remote control signals. 3.18 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. |
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