Is there any power sequencing requirement for the Cyclone V power rails in Group 2 if the voltage levels of these power rails are different?

Description

For Cyclone® V devices, power rails within Group 2 can be powered up in any sequence regardless of the voltage level on these power rails. The VCCIO and VCCPD rails are recommended to be powered up concurrently, to avoid transient current at VCCIO.

For details of which power rails are in Group 2, refer to the Power Management in Cyclone V Devices chapter in Cyclone V Device Handbook, Volume 1: Device Interfaces and Integration (PDF)