I've noticed that whenever my Xplained pro's PC2 pin is configured as an input, it's reading high? (via PORTC.IN) I've taken a look at the schematics and for my own life I can't see it being pulled high anywhere, and to be fair PC2 is a USART signal so there shouldn't be any need to pull it high anyway. PC0 & PC1 are TWI pins so they are pulled high (this is also causing me problems but I'm just going to remove the two pull ups in that case) and I've checked to see if there's a short between anything there but everything seems fine.
So firstly - am I blind and have missed something in the schematic and PC2 is indeed being pulled high somewhere?
And secondly, has anyone else experienced this?
Edit: Something I forget to mention - I've measured PC2 with a 'scope via pin 13 ox Ext1, and it measures flat 0!?