Data Sheet

26
3.5 Timing Sequence
AW-AM457-D power up timing sequence.
VDD33 must be good (90%) before +1.8V starts ramping up.
+1.8Vmust be good (90%) before PDn starts ramping up.
3V3
PDn
VIO
1V8
Power_good (90%)
Internal POR
Power_good (90%)
Strap/Internal
RESETn
Boot ROM execution starts
and firmware download
begins