Re: [pci] PCI IP core

[Oliver Amft <oam@gmx.net>]

Hi Tadej, all

I took some time to walk through the project papers in the last few days.
I didn't find any clear reference to the "Device Specific Configuration
regiters" you mentioned (maybe I wasn't careful enough); the only thing I've seen
is the extended Config Space (figure @ specification page 21) - is it that
what you meant? BTW: What is the intended use of this space - I assume it is
just for the image mapping stuff (PCI Target/Wishbone slave), right?
Cheers,
Oliver

P.S. The "image"-thing is fine, thanx for explanation!



> Regarding the questions, I will first answer on the second one, why
> is the count (of the "images") limited from 2 to 5 instead of 1 to 6.
>     The maximum number of all "images", as you also mentioned, is 6.
> Of course you may use none of them or one or all six, but we (I guess
> we wasn't so clear about this) were thinking, what should this PCI
> core, we are trying to make, have. 1 image is used to access Device
> Specific Configuration registers. So there are only 5 images left (that
> is why 2 to 5). By default, the PCI core should have (it can also be
> changed) 2 images, but the number is also adjustable to the max of 5.

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