What does pin level means?

I have voila board and VF50 processor. I have downloaded the GPIO project from here : http://developer.toradex.com/knowledge-base/how-to-use-gpio-library . After deploying the project, I tested it for input. I entered the SODIMM 135, it shows SODIMM 135 level : 1. That means the pin has by default pulled up and it has 3.3v. But when I checked the voltage at pin, it shows 1.4v. I am confused with this pin level. Can anyone please explain this to me. If pin level 1 means pulled up then why it is showing voltage of 1.4v.