Do Arria V SoC and Cyclone V SoC devices require a startup sequence for each power supply system?
SoC FPGAs
Yes.
For details, please refer to the handbook of each device.
Arria V SoCs:
https://www.altera.com/en_US/pdfs/literature/hb/arria-v/av_5v2.pdf
Chapter 11. Power Management in Arria V Devices
Cyclone V SoCs:
https://www.altera.com/en_US/pdfs/literature/hb/cyclone-v/cv_5v2.pdf
Chapter 10. Power Management in Cyclone V Devices
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