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DRA821U: USB OTG support along with USB HUB

Jack
Mastermind 9075 points
Part Number: DRA821U
Other Parts Discussed in Thread: DRA821,

Hi DRA821 champ !

When the customer asked if USB dual role device (DRD) and OTG are supported, DRA821U Datasheet said it supports Host and Device mode through USB DRD and stated that it only supports USB OTG 2.0,

By the way, they say that OTG doesn't work if USB-HUB is used, so please give us your TI opinion,
If that's true, is there a way to support USB OTG with a separate IC?

Thanks.

Regards, 

Jack

  • 0
    TI__Guru 56185 points

    Hi Jack 

    There is only one host controller in the DRA821.

    and the host controller is shared between the USB hub and type C via mux 

    based on the mux value it will select the functionality either to use typec or usb2.0 HUB.

    both is not supported at a time 

    Regards
    Diwakar