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OK to leave 3.0 RX/TX blocks unpowered if only using USB 2.0?
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OK to leave 3.0 RX/TX blocks unpowered if only using USB 2.0?

AssemblyRequired posted on 31 May 2012 7:08 AM PST
Top Contributor
37 Forum Posts

Does anyone know if it is OK to leave the USB 3.0 1.2V supply pins (and associated logic powered by those pins) unconnected if the FX3 is to be used only for USB 1.1/2.0 communication? I didn't see anything in the datasheet or schematic design checklist (AN70707).

Thanks,
Steve 




Re: OK to leave 3.0 RX/TX blocks unpowered if only using USB 2.0?

aasi posted on 05 Jun 2012 09:26 AM PST
Cypress Employee
1073 Forum Posts

 Yep. You can






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