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HD3SS3220 swap SSTx/SSRx paths?

Ken Henderson
Intellectual 670 points
Other Parts Discussed in Thread: HD3SS3220, TIDA-00891

Hello,

My USB controller (FT600) has the SSTx & SSRx paths crossed over when compared to the pins on the HD3SS3220, so I would need to change routing layers on one of the pairs, which I would like to avoid.

I have seen in the "HD3SS3220 DFP Dongle Evaluation Module" (SLLU237–March 2016) that it appears the TX & RX data paths are swapped so the TX pair goes on the RX switch in the HD3SS3220, and vise versa:

But in the schematic for the TIDA-00891 UFP design example TX is on the TX path and RX is on the RX path:

So my question is: Can I swap use the TX path for my RX and RX path for my TX?

Or in other words, is the MUX in the HD3SS3220 just a switch and does not depend on the data direction?

Looking forward to any help!

Thanks, Ken