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Understanding power modes

Question asked by ranshalit on Oct 5, 2018
Latest reply on Oct 7, 2018 by igorpadykov

Hello,

 

I haven't find a lot of information about power modes in iMX RT1050 reference.

I did find the following application note:

https://www.nxp.com/docs/en/application-note/AN12094.pdf 

It list a table with definition for each run mode and low power mode ( I assume from this that run mode is just a higher power mode , Right ?)

 

Yet, I don't understand: 

Is it that this conditions were randomly named as given in table "suspend" , "snvs" (not related to any hardware state) ?

Or is that cpu transfer itself to hardware state when the required power conditions are met as mentioned in the table ? 

 

How can we verify that the cpu got into the power mode that we wanted ? Is there a register which states what power mode the cpu is right now (or any statistics about transitions between power modes) ?

 

Thank you,

ranran

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