nRF52: Time from calling __WFI() to HFINT turn off?

[CurtisHx]

Assuming that all peripherals that require the high frequency clock are disabled / turned off / stopped, how long does the HFINT oscillator run after calling __WFI()?

And if it's greater than 1ms or so, is there any way to shut it off faster?

[CurtisHx]

If HFCLK is already powered down by the time __WFI() is called, then what's the CPU running off of?

[CurtisHx]

I'm not quite sure what happened there... I thought I had clicked on on the "add a comment" button, and now I can't put the original answer back. I think I just made a whoopsie doodles.