In the User's Guide of Powering the AM335x with the TPS65217x,the VIO is connected to VLDO1 which is 1.8V. But in Bealgeboard design, it is connected to LDO3 which is 3.3. when VIO is connected to 1.8V or 3.3V voltage, what is the difference between them?
I do not understand the meaning of this "Output-high supply for output buffers" ...