N900 Hardware USB PHY: Difference between revisions
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imported>speedevil New page: The USB PHY is the physical layer controller for the USB port. =Hardware= =Software= Category:N900 Hardware |
imported>joerg_rw →Hardware: FUSB2500 |
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The USB PHY is the physical layer controller for the USB port. | The USB PHY is the physical layer controller for the USB port. | ||
=Hardware= | |||
=Software= | ==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]] | [[Category:N900 Hardware]] | ||
Latest revision as of 04:04, 21 August 2018
The USB PHY is the physical layer controller for the USB port.
Hardware
The NXP isp1707a is used as the USB PHY chip. [1]. This rights to this part have been bought by ST-Ericson and some information is 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: [2]) is the 1704 which has a datasheet [3]
Another equivalent chip seems to be the FUSB2500 - see [4]
It is connected to the battery charger chip and the N900 CPU.
Software
The USB PHY is only dealt with by the kernel.
