PocketBeagle wake from external RTC


I have a PocketBeagle project that I hope to run from battery. To extend battery life, I would like it to power down completely, then be wakened by an external RTC every few hours.

I thought about waking the PocketBeagle by tying the alarm pin of the RTC to the “PB” (PushButton) pin on the PB. This initiates the power-up! But the TPS65217 PMIC will power the board back down if the “button” is asserted for more than 8 seconds.

Is there a way to disable the “8 second” rule? Or another way to accomplish what I’m trying to do?