PCjr (Was Re: IBM PC hacking)

[Scott Stevens]

On Fri, 30 Sep 2005 23:51:10 +0100 (BST)
ard at p850ug1.demon.co.uk (Tony Duell) wrote:

> > 
> > The XT controllers were (the 10 MB controller was different from the

> > 20MB one)  a peculiar beast with a bunch of proprietary LSI.  When
the 
> 
> IIRC, the TechRef for the 10MByte controller contains a schematic with
3 
> chips simply labelled LSI A, LSI B and LSI C. It was fairly obvious
from 
> the piuout that one of this was nothing other than a Z80 processor. I 
> think one of the others was something standard too.
> 
Is that the Xebec controller?  (can't remember if that's who IBM got the
original controller for the XT from or not)

> -tony