AM5718: IDK board, voltage divider on GPIO_USB2_VBUS_DET

Part Number:AM5718

Reference the AM5718 IDK board (http://www.ti.com/tool/tmdxidk5718) schematics, p.5.  It shows a voltage divider on the input to U96.

The signal GPIO_USB2_VBUS_DET then feeds into an AM5718 GPIO on p.32.

Question: What is the need for the voltage divider?

Thank you,

David