How is the VADJ rail treated on UltraScale Boards and Kits?
For UltraScale Boards and Kits, the process for VADJ read as defined in VITA57.1 FMC specification is followed.
This involves the querying of the Mezzanine Card's EPROM to ensure that the VADJ voltage is brought up at the correct voltage.
The Maxim Integrated power controllers on the UltraScale Boards and Kits power on with VADJ off by design.
VADJ gets enabled by the MSP430 System Controller after power-on under the following conditions (1 or 2 or 3):
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