TUSB1064: I want USB SS/DP from the USB_C (connected to a USB Device) and the muxed output to go to DP monitor and USB3 MicroB PC host

cpu utopia

Part Number: TUSB1064

Hello,

I have a device that supports DP alt mode and it has the ability to route USB3 (10gbps) or DP out of the USB Type C connector.

This devices generates the DP content

I'm making a board that will do two things:

1. Allow a USB HOST PC to connect to the TUSB1064 SS downstream ports and enumerate the previously mentioned device as a USB device (connected to the TUSB1064 SS upstream ports)

2. Route the DP output of the TUSB1064 to a DP connector which will be connected to a DP monitor using a DP-DP cable

I think the DP port part is fine with the TUSB1064, but all the EVM documents I see reference connected a the downstream USB pins to devices / hubs and the upstream to the host PC, whereas I want the opposite.

over 5 years ago

0 Brian Zhou over 5 years ago

TI__Guru*** 147530 points

did you check TUSB1046? it should be opposite to TUSB1064.

0 cpu utopia over 5 years ago in reply to Brian Zhou

Prodigy 225 points

Then I'd have the same problem with display port.

I want a chip that looks like a DP sink which is what the TUSB1064 does. It then provides DP source to my DP connector and DP monitor connected.

What I want to know is this:

Is there a simple mux inside the TUSB1064 (i.e. does it care if a HOST is connected to it's DOWNSTREAM USB ports or that a DEVICE is connected to its UPSTREAM USB ports?

If it's a simple 10gbps SS mux then it's just a passthrough and it won't affect the USB host/device negotiation.

Thanks,

Adam

0 David (ASIC) Liu over 5 years ago in reply to cpu utopia

TI__Guru**** 178996 points

Adam

From a USB3 perspective, we don’t care which side Host or Device is on. So TUSB1064 will be the right device to this application.

Thanks

David

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TUSB1064: I want USB SS/DP from the USB_C (connected to a USB Device) and the muxed output to go to DP monitor and USB3 MicroB PC host