A1 Motherboard specs diagram

[NoiseEHC]

> You are mistaken.  The Geode LX has a two scaler units, and neither can
> feed back to the main CPU.  One of them is in the Geode Display Controller
> (not the DCON), and simply scales the entire screen to the output.  The
> other is in the Video Controller, and can be used only for overlay
> scaling.  Either way, the scaled output is never written to video memory.
>  The Graphics Controller, which can manipulate video memory, does not
> contain a scaler.
>   
Yes, you are right, now I remember. Seems that somewhat the names of the 
multiple video units got mixed up in my head.