Power Rail Control

Zynq UltraScale plus MPSoC Power Management

Release Date
2022-07-26

PM Framework enables runtime control of power supplies using MIOs. These controls can be used to power up/down PL, FPD and LPD (whole chip). If the end application needs to realize power states that involve powering ON/OFF PL and FPD domains, then the board should be designed to connect the respective MIOs to power supply controller as described in the table below:

MIO

PMU GPO

Power Domain

MIO

PMU GPO

Power Domain

MIO 32

GPO1[0]

FPD

MIO 33

GPO1[1]

PLD

MIO 34

GPO1[2]

Software defined, but in general used for full chip or board power down

Note that these MIOs will be tri-stated during power up and booting. So, a strong pull-up should be provided on the board to keep the power ON as default state during startup.