TUSB9261: Could TI possibly provide firmware with the USB RX/TX swapped?

RuggedEngie

Part Number: TUSB9261

I understand there are firmware versions swapping the SATA pairs. But what about the USB pairs. Is it possible to get firmware with USB_SSRX swapped with USB_SSTX?

Thank you

over 5 years ago

0 Brian Zhou over 5 years ago

TI__Guru*** 146735 points

USB SS should support TX/RX swap by itself.

0 RuggedEngie over 5 years ago in reply to Brian Zhou

Intellectual 375 points

I do not think you can swap RX/TX pairs in the manner I am suggesting. USB standard does allow polarity swap (+/-) within pairs.

I am asking if there is an alternate firmware that allows us to connect Host SS_RX signals to the TUSB9261 SS_RX pins and same for TX signals? Instead of the typical Host SS_RX goes to TUSB9261 SS_TX pins and vice-versa.

Basically, can the TUSB9261 SS_TX pins be changed to SS_RX pins and vice-versa?

0 Brian Zhou over 5 years ago in reply to RuggedEngie

TI__Guru*** 146735 points

sorry, I'm confused with polarity swap, let me check if we have firmware to do it.

0 RuggedEngie over 5 years ago in reply to Brian Zhou

Intellectual 375 points

Thanks Brian. Any updates?

0 Brian Zhou over 5 years ago in reply to RuggedEngie

TI__Guru*** 146735 points

sorry, USB3 can not do TX/RX swap.

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TUSB9261: Could TI possibly provide firmware with the USB RX/TX swapped?