The On-chip sensor VUSER supply tab of the SYSMONE4 Wizard does not accommodate support for the 6V transfer function.
When you select a HD bank as one of the VUSER supplies in the wizard, it should automatically set bits [3:0] of configuration register 44.
However in the IP these bits are not set:
In addition, the alarm limit range in the Wizard can only be selected up to a maximum of 1.8V. This is not enough for a HD bank.
This issue is due to be addressed in an upcoming release of the tools.
In the meantime the work-around is to manually instance in the RTL from the Wizard and do the following: