Description: Inter-Integrated Circuit bus is a two-wire serial bus developed by PHILIPS company, used to connect the microcontroller and its peripherals. It is a special form of synchronous communication, and has a simple interface cable, the control mode, the communication rate is higher. Only need a serial data line SDA and a serial clock line SCL.It is a true multi-master bus, if two or more host initialization, data transfer by collision detection and arbitration to prevent data corruption serial 8-bit bidirectional data transfer rate up to the standard mode100kbit/s, the fast mode, up to 400kbit/s up to 3.4 Mbit/s high-speed mode IC number is only connected to the same bus by bus capacitance of 400pF limit. SDA line must remain stable in the high cycle of the clock. High or low state of the data lines only when the clock signal on the SCL line low to change. The falling edge of the serial data (SDA) and serial clock SCL in a stable high state communications start communication to stop the r
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IIC.c
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