TE0808 TRM
Revision: v.32
Copyright © 2019 Trenz Electronic GmbH
26 of 46
http://www.trenz-electronic.de
Each power domain has its own enable and power good signals. The power rail
GT_DCDC
is needed to generate the
voltages for the Multi Gigabit Transceiver units of the Zynq Ult MPSoC.
8.2 Power Distribution
Dependencies
The power rails DCDCIN, LP_DCDC, PL_DCIN, PS_BATT have to be powered up on the assigned pins of the B2B
connectors as listed on the section "Power Rails". Except 'PS_BATT' (see section "Recommended Operation
Conditions"), all power-rails can be powered from 3.3V power sources (also share the same source, if power domain
control is not required).
There are following dependencies how the initial voltages of the power rails on the B2B connectors are distributed
to the on-board DC-DC converters, which power up further DC-DC converters and the particular on-board voltages: