Asynchronous timers in sleep modes on E5?

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#1
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Has anyone tried running timers asynchronously on an XMEGA E5?

 

The event system says that it works in all sleep modes. Async input sense is available on various pins. You can use the event as the clock input of a timer... So it sounds like you could clock a timer asynchronously in all sleep modes, even if the peripheral clock has stopped.

 

Is that the case? Has anyone actually tried it?

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I've READ about the event system, but never actually tried it.

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Sounds like I might just have to try it. I've used the event system a lot and it's great, but it also creates a little weakness in the XMEGA where for example timers rely on it for external clocking rather than having a dedicated async clock pin.