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AR# 67103

UltraScale Boards and Kits - VADJ behaviour and bring-up

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):

If one FMC card is plugged into either of the 2 FMC connectors on the UltraScale board
AND
Proper IPMI format defined in VITA57.1 FMC specification is programmed into the Mezzanine Card's EPROM
AND
The Mezzanine Card's IPMI data defines a compatible VADJ voltage (range) with the UltraScale board's VADJ capability

If two FMC cards are plugged into the two UltraScale board FMC connectors
AND
Proper IPMI format defined in the VITA57.1 FMC specification is programmed into both of the Mezzanine Card's EPROMs
AND
Both Mezzanine Card's IPMI data defines a VADJ voltage (range) compatible with the UltraScale board's VADJ capability

Was this Answer Record helpful?

Answer Number	Answer Title	Version Found	Version Resolved
63175	Kintex UltraScale FPGA KCU105 Evaluation Kit - Known Issues and Release Notes Master Answer Record	N/A	N/A
62603	Virtex UltraScale FPGA VCU108 Evaluation Kit - Known Issues and Release Notes Master Answer Record	N/A	N/A
62604	Virtex UltraScale FPGA VCU110 Evaluation Kit - Known Issues and Release Notes Master Answer Record	N/A	N/A
66752	Zynq UltraScale+ MPSoC ZCU102 Evaluation Kit - Known Issues and Release Notes Master Answer Record	N/A	N/A

AR# 67103
Date	05/20/2016
Status	Active
Type	General Article
Boards & Kits	Kintex UltraScale Boards and Kits Kintex UltraScale FPGA KCU105 Evaluation Kit Kintex UltraScale FPGA KCU1250 Characterization Kit More Virtex UltraScale Boards and Kits Virtex UltraScale FPGA VCU108 Evaluation Kit Virtex UltraScale FPGA VCU110 Evaluation Kit Zynq UltraScale+ MPSoC Boards and Kits Zynq UltraScale+ MPSoC ZCU102 Evaluation Kit Less