[Coco] [OFF] Hitachi MB-6890 information needed

[Gene Heskett]

On Tuesday 22 April 2014 13:49:13 Retro Canada did opine:

> and maybe this machine was the reason for Hitachi to design the 6309
> without motorola approval

Correction, the contract with moto was to make a workalike clone in cmos, 
but hitachi never saw a moto chip mask.  They were much more advanced in 
cmos than moto was, made the workalike, but had so much empty space in the 
microcode table that their folks had lots of fun adding stuff.  But their 
clone contract with moto precluded it being promoted as better, only a 
clone in cmos.  And that it why to this day, hitachi will not even give a 
reply comment to any questions about its improved abilities.

> On Apr 22, 2014, at 10:02 AM, Bill Pierce <ooogalapasooo at aol.com> wrote:
> 
> 
> Daniel,
> I "googled" "hitachi mb-6890" and found all kinds of articles. One of
> which was the manual page already linked. Another was a forum where
> someone was saying they had a bunch of disks for it and were wondering
> how to read them. Also you can google "hitachi peach" as that seems to
> be the "pet" name of the machine. I also read that many people wondered
> if hitachi was actually using a 6309 instead of a 6809 as the machine
> seemed faster than a 6809 and had much broader capabilities (especially
> graphics) than the average 6809 machine. Tha could explain why they
> never broadened their distribution of the machine... Motorola probably
> wouldn't have liked it :-) This machine may be a candidate for a
> NitrOS-9 port...
> 
Breaking the warranty seals and taking a look would answer that question.
> 
> Bill Pierce
> "Today is a good day... I woke up" - Ritchie Havens
> 
> 
> My Music from the Tandy/Radio Shack Color Computer 2 & 3
> https://sites.google.com/site/dabarnstudio/
> Co-Webmaster of The TRS-80 Color Computer Archive
> http://www.colorcomputerarchive.com/
> Co-Contributor, Co-Editor for CocoPedia
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> E-Mail: ooogalapasooo at aol.com
> 
> 
> 
> 
> -----Original Message-----
> From: Daniel Campos <daniel.campus at gmail.com>
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> Sent: Tue, Apr 22, 2014 9:29 am
> Subject: Re: [Coco] [OFF] Hitachi MB-6890 information needed
> 
> 
> WOW! Thanks!
> 
> Daniel
> 
> 2014-04-22 10:06 GMT-03:00 Benoit Bleau <benbleau at gmail.com>:
> > Daniel,
> > I found that this site has the manuals for the MB-6890
> > http://www.1000bit.it/scheda.asp?id=980
> > 
> > Benoit.
> > 
> > 
> > On Tue, Apr 22, 2014 at 8:00 AM, Daniel Campos
> > <daniel.campus at gmail.com
> > 
> >> wrote:
> >> 
> >> Hello,
> >> 
> >> I just recently acquired a Hitachi MB-6890, a japanese machine that
> >> used
> > 
> > a
> > 
> >> 6809 processor and was sold on Australia too.
> >> I really want to know if someone here on this list have any
> >> information about this machine? Perhaps some obscure repository with
> >> disk images? :-)
> >> 
> >> Daniel
> >> 


Cheers, Gene
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