Looking for a PCIe USB Host card with UHCI

[USBVIDPID]

Hello, All.

I am looking for a UHCI PCIe Host adapter, because my full speed USB device using a NetChip NET2890 USB controller does not enumerate when connected to either an OHCI or a USB 2.0 Hub that is connected to an EHCI host controller.

I think my search is in vain.  I have found that most USB host controller cards use OHCI host controller logic.

Thanks

[Jan Axelson]

Yes, UHCI is common on motherboards, while add-in cards use OHCI. Using a PC with UHCI or trying a USB 3.0 host (supports all speeds) are two options.

[Ron Hemphill]

Chipsets made by Intel and VIA are UHCI, which is why most motherboards support UCHI.  In fact, many other chipset makers are moving to UHCI because Intel supports it.  Most add-in cards use NEC chips and therefore are OHCI.  I don't think I've ever even heard of a PCIe card that supports UHCI.

You're only real chance may be to look on ebay for an older, plain-jane PCI card that has a VIA chipset, like this one (brand new PCI 2-port for <$5):
http://www.ebay.com/itm/2-1-Port-USB-2-0-PCI-Expansion-Card-NEW-/290859439104

[Barry Twycross]

Intel hasn't supported UHCI on its motherboard chipsets for several generations now. They've been EHCI only with a integrated hub (which Intel call a "Rate Matching Hub"). That started with what Intel calls the 5 series it seems.

[USBVIDPID]

Thank you, Ron!

This Via chip set,  VT6210L, on the PCI card that you directed me to, works fine.  It does exactly what we wanted!  Now we are waiting Via to tell us if we can get more, VT6210L for a short term need.  It even works on Win 7.  The vendor only claims Windows XP as the highest windows driver support, which wasn't too much of a surprise.

James