Goodmorning,
We are planning to use AM335x rev 2 in RTC-only mode, whit internal LDO. On SPRUH73 rev h 8.1.4.3.5 figure 8-5 there is signal ext_wakeup0 from PMIC to AM335x.
On 8.1.4.3.6 is stated that EXT_WAKEUP0 must be connected to a wakeup source but what it mean ? Which is a wakeup source if I want that AM335x start up when Main supply came and shut down when main supply gone ?
I'm a bit confused about startup sequence.
Thank in advance
Stefano