AM625: Periodic wakeup, any alternatives to a RTC?

Part Number: AM625

Hello TI,

We're using the AM625 in a low-power-mode product and setting it into Suspend-2-RAM when not in use. We have a few different external wake mechanisms that we're exploring (LTE, WiFi, CAN) but are planning on using the RTC as a "wake source of last resort" ... basically setting the RTC to wake up the AM625 every 12 hours if nothing else has triggered a wakeup event in the meantime.

Are there any other timers, internal to the AM625 that can be used in this way? Or is an external RTC event the only path?

Thanks in advance for your help!

Tom