Hi.
I'm developing a device featuring the AM4376 and the TPS65218x. In the standard use case, the TPS65218x PWR_EN pin is connected to the AM3476 RTC_PMIC_EN pin, as described in slvuaa9.pdf. I'm not planning to use the RTC (also to reduce BOM cost and space requirements), and I wonder what an appropriate replacement would be to drive the PWR_EN pin instead, because the RTC_PMIC_EN cannot be directly controlled using RTC registers.
I want to be able to turn the device on using the PB input of the TPS65218x and turn it off by software (e.g. trigger a shutdown by holding down a button connected to a GPIO).
I thought about connecting the PWR_EN to a GPIO of the AM4376 and a Pull-Up Resistor to RTC_PMIC_EN, however if I pulled the corresponding GPIO low, it would trigger the shutdown process, possibly invalidating the state of the GPIO before RTC_PMIC_EN goes low and thus triggering a restart.
