On 02/04/2014 01:46 PM, Geert Uytterhoeven wrote:
>
> Because they're fixed frequency, and used for communication with other
> devices, so accuracy matters?
>
> Other clocks can be tuned for performance or power reasons, but clocks
> for communication must be fixed and stable. You can run e.g. your CPU
> or memory a bit slower or faster, but not your Ethernet.
>
But modern frequency synthesizers can do that easily.
-hpa
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