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HD3SS3220: I2C

Part Number: HD3SS3220

Hi team,

The platform used by the customer, I2C resources have been occupied, and there is no I2C available. It is mentioned in the application information section of datasheet 8.1 that Use of I2C is optional but strongly encouraged. I would like to know the function of I2C, or what functions will be lost if I2C is not connected? So I can better support customers

  • Hi Amy,

    I2C is recommend to understand in more detail what is connected to the Type-C port. This is more relevant to detection audio accessories and debug accessories. Also some other features listed below are lost without I2C:

    • DRP Duty cycle control
    • Disable UFP accessory support
      • Can be important for compliance testing

    • Selection of Try.SRC or Try.SNK.