[I'm cross-posting this from https://www.microchip.com/forums... -- pardon me if this is considered inappropriate practice, but I think this forum is more likely to produce a useful answer!]
I've looked over the documentation for the SAM E70 Xplained Ultra User's Guide and, while it mentions the generic EXT connector, it doesn't document EXT1 and EXT2.
I need to know exactly which processor pins / functions are connected to each of the EXT1 and EXT2 pins. I could reverse engineer it by tracing through the schematic, but I'm surprised that it's not documented like all the other Xplained boards. For example, see Table 5-1 in the SAM E54 Xplained Pro User's Guide.
Even stranger, I have this vague recollection of seeing such a table somewhere, but I certainly can't find it now. Any pointers?