SPRAD67A december 2022 – july 2023 AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
This supply (1.8 V) is only sourced while programming the eFuse. VPP pin can be left floating (HiZ) or terminated to ground during power-up/power-down sequences and during normal processor operation. The following hardware requirements must be met when programming keys in the OTP eFuses:
For more information, see [FAQ] AM625 / AM623 Custom board hardware design – Queries regarding VPP eFuse programming power supply selection and application.
For more information, see the VPP Specifications for One-Time Programmable (OTP) eFuses section in the Specifications chapter of the device-specific data sheet.