Voltage
So, according to the block diagram... there's 3.3v and 1.05v going in.... I wonder if they're using a charge pump to generate the 5v for the usb port, or if they ommitted it in the diagram, or if it's not actually there.
OK, I appreciate that the 5v could be wired directly to the port, but the block diagram specifically mentions the port power control interface... maybe it's to enable the requests for more power and it interfaces with external power limiting hardware.
Glad to see USB3 is getting there though.