Perhaps you will find page 27, "USB signals over USB Type-C®", clears up the strangeness. At least when you get to the first section, "USB 2.0 Signaling Over T

Perhaps you will find page 27, "USB signals over USB Type-C®", clears up the strangeness. At least when you get to the first section, "USB 2.0 Signaling Over Type-C".