Am 06.01.2011 22:45, schrieb Gerhard Hoffmann:
I was thinking about abusing the built-in SERDES-Units in the Spartan6
as a prescaler. It would
be necessary to sort out the transitions after the 1:16 gearbox, but
given the amount of logic in a Spartan6
that should be possible. While I have not seriously tried that, I have
spotted no show stopper
in the data sheet.
The SERDES units are used for PCI-express, USB3 or fiber optic links
otherwise.
It should be possible to reach 3 or 4 GHz.
To clarify this:
That would not be a prescaler but a full range extension.
Timestamping would be possible at 3 or 4 GHz.
And I meant SATA-3, not USB3.
Gerhard
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