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在整个系统中,所有的器件都有自己唯一的编码地址(一般固化在集成电路内)。各器件的I~2C总线接口电路能够捕获符合本集成电路地址编码的信号,并能进行识别译码,对相应的电路参数进行控制。例如长虹NC—6机芯G2966彩电的系统控制电路(各个具有I~2C总线功能的电路),通过SDA、SCL两条数据总线挂在CPU的SDA、SCL端口上。与CPU相连的E~2PROM存贮器,用于存放本机各种控制数据(如:行线性控制、频道预选、电视机当前工作的状态等)。CPU作为主控制器通过SDA、SCL两条数据总线和存贮器
Throughout the system, all devices have their own unique encoding address (usually cured in the integrated circuit). The I ~ 2C bus interface circuit of each device can capture the signals conforming to the address code of the integrated circuit, and can identify and decode, and control the corresponding circuit parameters. For example, Changhong NC-6 movement G2966 color TV system control circuit (each with I ~ 2C bus function of the circuit), through the SDA, SCL two data bus connected to the CPU SDA, SCL port. The E ~ 2PROM memory connected with the CPU is used for storing various control data of the unit (such as line linear control, channel preselection, the current state of the TV, etc.). CPU as the main controller through SDA, SCL two data bus and memory