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TPS65263-1Q1: PGOOD pin exact behaviour

Part Number: TPS65263-1Q1

HI.

in my application, i have ch 2 & 3 ENx floating (=immediate start at power on). Ch1 has a 1 uF cap to ground on it's EN1 pin, delaying it's start about 200mSec

How do i have to expect PGOOD to behave then?

In my application, PGOOD is used as a general power on reset, so i need it to rise only once also ch1 is regulating.

I'm afraid, instead, that it will rise a first time as soon as ch2 & 3 start regulating, then fall as soon as EN1 will reach 1.2V, and rise again once again as soon ch1 is regulating.

Has anyone here had any experience with this? The answer should (may) be in the datasheet, but i can't rely on the few words spent there: it's said it will rise only once all of channels will enter regulation, but what if not all of the 3 channels are used (==enabled)?