Glass scale code - how is Tach and Probe configured

[atunguyd]

Hi wonder if  Yuri can possible answer this question?

I am building the glass scale version of the DRO transmitter, I plan on only adding the Tach and maybe probe later so I am placing headers for them in the mean time. However I realize that they may be configured as interrupts in the code and I dont want to leave them floating.

I just wanted to ask if they are configured for internal pull up or pull down  or when I dont have them connected I should manually pull them to a high or low?

Thanks in advance

Anthony