Chroma CPU

[R]

Christian,

I think you answered your own question.

Chroma = MC68B09P which BTW is NOT pin compatible with the MC68B09E, both are 40
pin dip though.
Polaris = Satan's fetus cpu ( just joking, calm down ) Intel '186

I think these two synths get mixed up more than most.

Russ L
askeyman at earthlink.net

Christian Hofmann wrote:

> Hi folks,
> I recently got me a nice little Chroma. Looking at the (included :-)
> schematics, I wonder why there's that rumor of an Intel 80186 being the
> Chroma's main CPU. Unmistakenly there's a Mot 6809 in there, apart from
> an 8048 (or so) for kb scanning. Even Philip Dodd (sp?) keeps talking
> about a 186 (in Mark Vail's book), and I think Peter Forrest also mentions it.
> (Ok, Peter may have read Mark's book as well... ;-)
>
> Does that refer to the Polaris, or were there different versions of the
> Chroma? Considering the amount of software involved, this would have
> meant a pretty drastic redesign.
>
> Can someone shed some light on this?
>
> cu
> Christian