[Figure 1, callout 22-30]
The VEK280 allows the Versal device to control the power to the various power domains. This is an active-High signal. It is connected to the components that are controlled using an open-drain buffer. Signals are listed in the following table with their associated power domains. The output of the buffers are pulled up with a 4.7K resistor to aid in the default boot state being set properly. When J345 is installed, the associated power enables and, consequently, power supplies are disabled. This can be useful when changing the programmable power supply default programming. When not installed, the Versal device shares control with UTIL_5V0_PGOOD, which is an output from the 5.0V power supply (U191). See schematic page 71 for more information (see Jumpers for defaults).
| Versal Device Pin | Signal | Power Domains |
|---|---|---|
| PMC MIO 11 | VCC_AUX_1V2_EN | VCCAUX_PMC, VCC_PSFP, VCCAUX, UTIL_0V9, VCC1V1_LP4, VCC1V5, LPDMGTYAVCC, VCCO_MIO, |
| PMC MIO 49 | VCC_PSLP_EN | LPDMGTYAVCC, LPDMGTYAVTT |
| LPD MIO 12 | VCC_PSFP_EN | VCC_PSFP |
| LPD MIO 13 | VCC_SOC_EN | VCC_SOC |
| LPD MIO 20 | VCC_PL_EN | VCCINT, VCCO_HDIO_3V3, VCC1V5, MGTAVTT, VCC_RAM, MGTAVCC, MGTVCCAUX |
| LPD MIO 23 | VADJ_FMC_EN | VADJ_FMC |