CYUSB3302 in embedded SS-PHY system

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Anonymous
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I would like to share one SS-PHY (from SoC) with two SS USB device in embedded environment (no USB connectors at all). I am planning to use CYUSB3302, but I don't know how VBUS topology should be build to ensure functional SS links including power management. So in embedded environment I don't have VBUS as such, but do I need build some kind of "virtual" VBUS topology? Or can I make system work without any VBUS lines? All connectivity is SS, no USB2.0 PHYS involved.

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1 Solution
Anonymous
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Not mandatory to connect VBUS to US port if it is embedded hub. It can be powered through external power supply.

Regards,

Anil

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3 Replies
Anonymous
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VBUS is needed if you would need a  connection detection feature

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Anonymous
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CYUSB3302 and two SS device are on PWB. They are always connected can not be disconnected. Do I still need 5V connected to US port?

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Anonymous
Not applicable

Not mandatory to connect VBUS to US port if it is embedded hub. It can be powered through external power supply.

Regards,

Anil

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