[Coco] Re: Any reason to put a 6309 in a Coco2?

[jdaggett at gate.net]

On 31 Dec 2003 at 15:51, Torsten Dittel wrote:

> > The GIME chip is the Coco3 will not support semigraphic modes
> 
> When I was talking about the "3" I referred to the "6309", not the
> CoCo3. Sorry for the confusion. I wondered if a 6309 running in
> 6809-mode would be fully compatible to an "original" 6809.
> 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

The Hitachi Part will act as a MC6809 when in "Motorola" mode as far as I know.. 
There is a mode register wrtie that puts the device in Native or Hitachi  mode and 
allows the user to access the increased instruction set and registers. Hitachi did 
make an HD6809 also as did TI and STMicro were second sources for the 
processor. Hitachi took the original design an improved it. Thus the HD6309.

james
 
> Does anyone know for shure if a "6309 Level I" NitrOS9 is planned or
> even released? Boisy?
> 
> Regards,
> Torsten
> 
> 
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