[time-nuts] iPhone keeping better time?
David J Taylor
david-taylor at blueyonder.co.uk
Thu Nov 17 01:11:52 EST 2011
>> Chris, I can see your point, but these devices must have a CPU running
>> the time, otherwise how would the soft power-up work?
> The ARM processor has a power manager that wakes the CPU and powers it
> up when events like a WiFi packet comes in or there is some input by
> the user. The CPU is not left running. watching for these kind of
> evens is done by a much smaller chip
> Chris Albertson
> Redondo Beach, California
Thanks, Chris. That's why I wrote "a CPU" rather than "the CPU".
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Email: david-taylor at blueyonder.co.uk
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