PCB Design Guidelines - UG584

The PCB design guidelines for the LVAUX mode are generally the same as for standard mode XQ devices, except a separate 1.2V V_{CCAUX_HPIO} power supply with its own decoupling capacitors is required for the VCCAUX_HPIO device power pins.

Refer to UltraScale Architecture PCB Design User Guide (UG583) and UltraScale+ FPGAs and Zynq Ultrascale+ Devices Schematic Review Checklist (XTP427) for PCB guidelines. Refer to the following section for decoupling capacitor recommendations which include recommendations for the V_{CCAUX_HPIO} supply.