[Open-graphics] OGA1: s3_bridge <-> arbiter interface?

[Lourens Veen]

On Monday 21 January 2008 01:44:47 Timothy Normand Miller wrote:
> On 1/20/08, Lourens Veen <lourens at rainbowdesert.net> wrote:
> > The bridge currently has 1 command write interface to the arbiter,
> > and 4 read interfaces. How is that supposed to work?
>
> Which side of the bridge (XP10 or S3) and which interface
> (inward-facing or outward-facing)?  I don't know what you mean when
> you say that there are 4 read interfaces.

The S3 part, I think I have everything in the XP10 covered.

Looking at it again, I guess I mainly don't understand the connection 
between the bridge and the arbiter. There is only one command queue, 
but the read end seems to consist of four separate parallel FIFOs, and 
I don't understand why.

Lourens

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