I am looking at a reference design for the allwinner H6 SoC. My question is pretty straightforward. Why does pin B3 need to be powered if the EPHY pins are unused. Additionally, pin B4 is being pulled down through the use of a 6k ohm resistor(incorrect assumption). [These have been answered]
What would you do regarding EPHY pins? Follow the design reference, include 50-150k Ohm Pu resistors, or include 50 Ohm pu resistors in the EPHY pins like Passerby recommends here.