That doesn't actually solve the problem, and offers a feature that we don't need, IE, controlled turn off. The idea is to _never_ turn off, and to just go to sleep and wake up. Resets can be performed through software to switch states and/or reset the device to give it a fresh start. That document, though, has an example circuit for the power input, which I've captured here:
They clearly do not use something with hysteresis on the input to the micro, which is likely a good example to follow, for the aforementioned reasons of ending up locked out without a key cycle.
I'll be doing some testing on this circuit and code in the next month or so, just in time for RavAGE layout, so stay tuned.
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