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Port Number: 3000-?

Memory-mapped Address: E20000

Function: USB

This is the USB controller. It's the Faraday FOTG210. You can find Linux drivers for this IP online, such as this register list: [1].

Port    Default    Bits    Information   
000F FF Bit 7 is set if the USB bus is receiving power, Bit 6 is set if the the USB bus is self powered (i.e. there's not a plug A type in the socket)
3104 FF In peripheral mode, the low 7 bits are the USB device address, and the upper bit is set.