N900 Hardware USB PHY

(Hardware)
(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.
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=Hardware=
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==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].  
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].  
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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]
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]
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It is connected to the [[N900 Hardware Battery Charger|battery charger chip]] and the [[N900 Hardware CPU]].
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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]
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It is connected to the [[N900 Hardware Battery Charger|battery charger chip]] and the [[N900 CPU]].
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==Software==
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The USB PHY is only dealt with by the kernel.
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=Software=
 
[[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.

[edit] 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.

[edit] Software

The USB PHY is only dealt with by the kernel.