Figure 6-6 describes the device power-down sequencing.
- VDDSHV_MCU and VDDSHVx
[x=0-5] when operating at 3.3V.
- VDDSHV_MCU and VDDSHVx
[x=0-5] when operating at 1.8V.
- VDD_CORE when operating at
0.75V.
- VDD_CORE when operating at
0.85V.
- The potential applied to VDDR_CORE must never be
greater than the potential applied to VDD_CORE +
0.18V during power-up or power-down. This requires
VDD_CORE to ramp up before and ramp down after
VDDR_CORE when VDD_CORE is operating at 0.75V.
VDD_CORE does not have any ramp requirements
beyond the one defined for VDDR_CORE. VDD_CORE and
VDDR_CORE are expected to be powered by the same
source so they ramp together when VDD_CORE is
operating at 0.85V.
- VDDSHV5 was designed to support power-up, power-down, or dynamic voltage change without
any dependency on other power rails. This capability is required to support UHS-I SD
Cards.