FPGA to USB protocol

Spartan-3 USB 2.0 Modules
1

I’m interested to acquire some modules xem3001.
I would want to have more information about the physical protocol of communication between FPGA and USB controller (the signals,how to use them, ecc).
Thanks!
Stefano

2

Please refer to the documentation online. If you have any further questions, you can ask them here, but be specific.

Cheers,
Jake