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TPS659128: confusion on pin purpose and interaction between Sitara AM6234ATCGGAALW processor

Part Number: TPS659128
Other Parts Discussed in Thread: TPS65219

So I chose this PMIC as the AM6234ATCGGAALW recommends using this PMIC in conjunction with itself.

However, the reference designs for this Sitara and similar parts use a more distributed single controller for each rail. As such its been challanging to decipher the intended use between this pmic and the Sitara processor.

Specifically pins such as: NRESPWRON(seems like a Pgood signal of sorts), PWRHOLD_ON(seems like an enable for the PMIC), and some of the pwm AVS circuitry.

I suppose what I am asking is if there is a reference design that implements these various features between these two product families?

Or perhaps a more detailed source of information regarding this part(at times it still seems very early production in terms of what information is available)? 

Extra Question:

Additionally, it is unclear what the factory default programmed settings are, where is that information stored/located?