Datasheet

SAM9G45 [DATASHEET]
Atmel-6438O-ATARM-SAM9G45-Datasheet_08-Dec-15
16
4.2.2 Power-down Sequence
To ensure that the device does not operate outside the operating conditions defined in Section 4.1 “Power
Supplies”, it is good practice to first place the device in reset state before removing its power supplies. No specific
sequencing is required with respect to its supply channels as long as the NRST line is held active during the
power-down phase.
Figure 4-2. Recommended Power-down Sequence
t
RSTPD
VDDPLLUTMI
VDDUTMIC
VDDUTMII
VDDPLLA
VDDOSC
VDDANA
VDDIOM0
VDDIOM1
VDDIOP0-2
time
NRST
VDDBU
No specific order and no
specific timing required
among the channels
VDDCORE