The I/O voltage of PL HP Bank64 is fixed at 1.8V.
By default, in G30M SOM the PL HD bank voltages are generated from PMIC LDO3 and are set to 1.8V. This I/O voltage can be reconfigured through software after boot-up whereas PL HP bank voltages are also set to 1.8V, they are sourced from PMIC LDO2, and not configurable.
If required, the HP bank voltage can alternatively be supplied from PMIC LDO3 by keeping the PL HD bank voltages fixed at 1.8V with hardware changes.
For further inquiries, please get in touch with mktg@iwave-global.com
Please find the detailed G30M product information in the below link,