Port C

GPIO Name	Peripheral	Function
PC 00	Clocks	Xin 32 kHz
PC 01	Clocks	Xout 32 kHz
PC 02	Clocks	Xin OSC 0
PC 03	Clocks	Xout OSC 0
PC 04	Clocks	Xin OSC 1
PC 05	Clocks	Xout OSC 1