Automotive USB port controller determines when another device is attached

The TUSB319-Q1, from Texas Instruments, is a USB Type-C downstream facing port (DFP) controller. The device monitors the USB Type-C configuration channel lines to determine when an USB device is attached. If an upstream facing port device is attached, the controller drives an open drain output ID that can be used in the system to apply VBUS power. The device also communicates the selectable VBUS current sourcing capability to the UFP via the CC lines.