Phase 1: Pre-Boot - 2025.1 English - UG1304

Versal Adaptive SoC System Software Developers Guide (Versal AI Edge Series Gen 2 and Versal Prime Series Gen 2) (UG1304)
Document ID
UG1304
Release Date
2025-06-23
Version
2025.1 English
Figure 1. Phase 1: Pre-Boot (Power-up and Reset)
1
The pre-boot phase is initiated when the PMC senses the PMC power and the external POR_B pin is released.
2
PMC reads the boot mode pins and stores the value in the boot mode register.
3
PMC sends the reset signal to the RCU.
Note: All other processors and controller units remain in the reset state.