The powering up and down of the GTM transceiver analog power supplies must follow a specific sequence specified in Xilinx Power Estimator (XPE).
Versal ACAP GTM power supply power-up
- GTM_AVCC (power-up first)
Versal ACAP GTM power supply power-down
- GTM_AVTT (power-down first)
Important: GTM_AVTT must not be powered on while GTM_AVCC is powered off.