Schematic for Raspberry Pi Model B Board
it would be fantastic if were in orcad format not pdf, coult it be?
Is this nice start?
http://elinux.org/R-Pi_Hub
http://elinux.org/RPi_Low-level_peripherals
The best way I have found to get answers to questions like these is googling the Data sheet for the IC in question.
Dont see any analog inputs though I do see several analog ground pins, does this suggest that some of the unconnected inputs that dont go to the onboard GPIO connector may have an analog input capacity ?
Thanks