On 6/25/06, James Richard Tyrer <[EMAIL PROTECTED]> wrote:
In message
<[EMAIL PROTECTED]>, "Timothy
Miller" writes:
> I'm not even sure this could fit in the XP6 we've chosen, although
> there's probably a bigger (but more expensive) one we could use.
> Usually, more integration is less expensive, but with FPGAs, it's the
> other way around. Two small ones are cheaper than one large one. We
> could split the design across two FPGAs for this.
If you are going to use two chips, would it be possible to use an
existing chip for part of the design? A simple NorthBridge for memory
control, for example. Or does someone still make memory controller
chips? Probably not. :-(
We looked into using a northbridge chip as a graphics chip. It seems
that we can't do it because northbridge chips are not designed to talk
to other northbridge chips. More precisely, they're designed not just
to be bus masters but a CENTRAL RESOURCE, and you can have only one of
those.
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