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AM437x: DRD USB and USB0_DRVVBUS

Gunter Schmer
Genius 14442 points

Hi,

A customer needs as many GPIO as possible on an AM437x design. I have seen some of the posts on AM335x and the necessity to have USB0_DRVVBUS connected.

Assuming VBUS0 is connected to 5V.

[] Could you confirm that USB0_DRVVBUS is necessary if the port is operated in Dedicated HOST mode (I think it is needed)

[] Could you confirm that USB0_DRVVBUS is necessary if the port is operated in Dedicated DRD mode (I think it is needed)

[] Could you confirm that USB0_DRVVBUS is necessary if the port is operated in Dedicated DEVICE mode (I don't think it is needed)

Thanks,

--Gunter