Read bit 7 1 and write 0.
The remaining 0~6 bits are the data table of IIC equipment and the schematic diagram of the board.
IIC(？ Mutual integration? Circuit? (integrated circuit bus? )? ), which is short for IICBus. As a serial communication bus, it adopts multi-master-slave structure.
It was developed by Philips in1980s, and is used for connecting low-speed peripheral devices to motherboards, embedded systems or mobile phones. Me? The correct pronunciation of c is "I- square -c", and "I-two-c" is another wrong but widely used pronunciation. Since June, 2006 10, I? C agreement no longer needs to pay patent fees, but manufacturers still need to pay for I? C slave address.
PS: We usually pronounce it as "? Me? Fang? c .
Pay attention to the key words above, connect low-speed peripherals? . It should be noted that IIC is half-duplex communication.
Low speed: IIC data transmission rate includes standard mode (100kbps), fast mode (400kbps) and high-speed mode (3.4Mbps).
Connection: Actually, IIC is a two-wire system, with a clock line SCL and a data line SDA.
Peripheral devices: multi-purpose data communication with peripheral modules and MCU, such as commonly used MPU6050, 0.96-inch organic light-emitting diode display module, DS323 1 clock module, etc., can realize half-duplex communication of data and instructions through IIC module.
————————————————