View source for N900 Hardware USB PHY

The USB PHY is the physical layer controller for the USB port.

==Hardware==

The [http://www.nxp.com/ NXP] isp1707a is used as the USB PHY chip. [http://www.spinics.net/lists/linux-usb/msg25167.html]. This rights to this part have been bought by ST-Ericson and some information is [http://www.stericsson.com/sales_marketing_resources/USB_transceiverBR_1.pdf available in a brief marketing sheet]. 

There is no published datasheet for this chip. It may be available under another name.

A reasonably similar chip (compare chips: [http://www.ebv.com/fileadmin/products/Products/ST-Ericsson/Flyer_USB_Transceivers_1.pdf]) is the 1704 which has a datasheet [http://www.stericsson.com/sales_marketing_resources/CD00222700.pdf]

Another equivalent chip seems to be the [https://www.startpage.com/do/search?query=FUSB2500 FUSB2500] - see [http://talk.maemo.org/showthread.php?p=643577#post643577]

It is connected to the [[N900 Hardware Battery Charger|battery charger chip]] and the [[N900 CPU]].

==Software==

The USB PHY is only dealt with by the kernel.

[[Category:N900 Hardware]]