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What kind of reset is triggered by the POR_B pin?

Question asked by Massimiliano Cialdi on Jun 11, 2019
Latest reply on Jun 12, 2019 by Kerry Zhou

I'm referring to RT1051.

 

on the Reference Manual (page 1242/1243):

 

So the Cold reset does not reset all the peripherals, unlike the POR reset.

The name of the POR (PowerOn Reset) reset makes me think that it can only be triggered when the micro is powered. Is that right?

What happens if I assert the POR_B signal (is pulled down) when the power supplies are already on and stable?

 

On the Datasheet I found (page 16):

 

Does the POR_B signal cause a cold reset or a POR reset?

 

best regards

Max

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