>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.
On Fri, 30 Sep 2005, Chuck Guzis wrote:
Probably so, but I never substituted a
"stock" Z80 to see if there was
something different about the IBM version. OTOH, the "clone"
controllers like Xebec certainly used the Z80.
The XT HD controller was a relabelled Xebec.
AT switched to WD.