The datasheet of the TUSB9261 is really short on certain aspects, crucial information is missing.
First of all, in case of certain errors the TUSB9261 seems to be pulling the reset pin low. This is really tricky, since this pin is listed as input pin. If the pin is actively driven, driving an logic low to the pin whilst the TUSB9261 decides it needs to pull the pin low results in destruction of the part.
Secondly, behaviour of the part is poorly specified. For example, there is no clear indication which parameters influence self-assertion of the reset.
Furthermore, the chip only functions with TI firmware. As far as I can see no functional overview (like flowcharts) of this software is available. This is really troublesome when debugging an application with integrated TUSB9261.
Kind regards
