Are you looking for the Fx3 here to behave as a USB 3.0 host card and interface to a PCIe port?
If so, then this is not possible. Fx3 can not act as a USB 3.0 host.
For Fx3 as a device, we do not have a PCIe to USB 3.0 (device) bridge.
We were hoping for something like this:
The following video claims the PE3A V3.1 version of the above does NOT support simultaneous usage of a PCIe-X device & USB 3.0.Though I was HOPING Cypress has a PCI-e X4 to Cyopress FX3 device, similar to what you see above, I'll need to contact these guys to see, (PRAY) that PE3A V3.2 works with PCIe & USB 3.0 at the same time.The above chicps they use is ASMedia and I guess it can do USB 3.0 to PCI-e X4 transfers:Dam, it would be so cool if Cypress had this though.Is this something Cypress can design ?