AM5716: VPP source during OTP process

Part Number: AM5716

Hello Ti support,

I have a few question on VPP source, and OTP process for the AM5716 High Security IC.

1. Are the voltage rails of the PMIC that powers the DSP effected during OTP process?
2. If yes, what voltage rails are affected?  Specifically, is the 1.8V rail affected during OTP process?
3. If voltage rails are unaffected, can the 1.8V PMIC voltage rail be used as VPP source for OTP programming?
4. When an LDO is used for VPP, what signal should be used for the LDO ENABLE if applicable.

We are migrating from the AM5716 standard IC to High Security Version for production.

We need to be absolutely sure of the entire OTP process and VPP power source and application.

Thank you,

David