For systems that support USB and DisplayPort Data, the USB and DisplayPort sources are muxed to the Type-C connector through the TUSB1046 Super Speed mux. The TPS65987D is capable of controlling the Super Speed Mux over I²C and will configure it according to the connection at the Type-C connector. The TPS65987D can also set the configurations for the Super Speed mux equalizer settings for the USB Super Speed and DisplayPort Lanes through an initializing set of I²C writes. Note that I2C1 is the I²C master controlling the SS Mux and I2C2 is connected to the embedded controller. I2C1 can operate as an I²C master/slave and I2C2 can only operate as an I²C slave. Alternatively the Super Speed mux can be controlled through GPIO instead of I²C. The TPD6S300 provides Type-C protection features such as short to VBUS on the CC and SBU pins and ESD protection for the USB2 DN/P. See the figure below for the system block diagram.

Figure 9-6 USB and DisplayPort Notebook Supporting PD Charging