I would to add an external watchdog on my TC333 and I would like to know if there are specific pins to Connect il?
thanks a lot
Depends on the watchdog. A simple one might be pet with just a TOM or GPIO, and the watchdog's output would be connected to the AURIX PORST. A more complicated one like Infineon's TLF35584 supports SPI communication for configuration and challenge/response watchdog operation.