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TUSB8044: Can one port be switched into DCP mode while the upstream port is connected?

msmn
Intellectual 805 points
Part Number: TUSB8044
Other Parts Discussed in Thread: TPS2546,

When the upstream port is connected, can one downstream facing port be switched into DCP mode? Other 3 ports continue to be used as SDP.

A customer is using a usb hub and one downstream facing port has TPS2546 now.  The port that has TPS2546 can be switched into DCP mode by pressing a button while the upstream port is connected.

If TUSB8044 can do that, they would replace the usb hub and TPS2546 to TUSB8044.

Regards

Masumi Saito

  • 0
    TI__Guru 60865 points
    Hello Saito-san,

    No, the hub doesn't support DCP mode when the upstream port is connected. DCP charging mode means that no data is exchanged between the host/hub and the charging device. Per the USB specification, all devices connected to the hub should be accessible by the host when the hub is connected and powered on.

    Regards,
    JMMN