On 4/29/05, Jonathan J. Smith <[EMAIL PROTECTED]> wrote:
> I'm trying to put together some targets for specing out potential parts
> for the non-FPGA side of things.
> 
> Did we ever come to a consensus on the high-side resolution that we want
> to support? (1280x1024, 1600x1200) etc?

The video controller logic will be able to handle just about anything,
although the analog DAC may limit things a bit.  We intend to support
dual-link DVI, so resoltions like 2560x2048 will be easily attainable.

> 
> This impacts the clock rate we need to support on the Video DACS.
> 
> Have we finalized the pixel formats yet? (8 bits? 10, 12? per component?
> (R,G,B,A?))

8 bits per, 32-bit.

> 
> Not sure if anyone else may be interested but for personal reasons I'm
> going to look into seeing If I can finagle a way to make (perhaps with
> some home modification) the card compatible with the SGI 1600SW LCD
> Monitors (love those, and I have 5-6 around the house)..

Shouldn't be hard.  What's special about it?  We're also going to have
to support raw LVDS out of the ASIC.

> 
> Umm letsee what else am I missing here.
> 
> That should be a good start for now I suppose.  Do we have a power
> budget outlined just yet?  Thermal Issues looked at?  Timothy, do you
> have an idea of what Clock rate we'll be running the FPGA at yet?  (I
> can probably come up with some estimates on power consumption and heat
> output)..

I'm designing things to run at 200Mhz, but when it's all put together,
it likely won't run at more than maybe 150, due to routing delays. 
Thermal issues will be considered in how ASIC resources are used
(disable RAM blocks when not in use, etc.), and we'll have a chart of
frequency vs. power requirements.

> 
> VGA - out DVI - I out? TV-out?

Yes.

> 
> Seems like I saw something about an official repository for
> documentation/code etc?  Is that set up yet?

opengraphics.org

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