[Coco] Adapting a V9958 64-pin Chip to fit a Solderless Breadboard

[Kip Koon]

I'm almost finished with building my version of SiMon6809 with a more
versatile address decoding logic to facilitate experimentation.  I think I
have come up with a very interesting address decoding design based on many
of the projects I've seen here and around the internet.  
There are various 8-bit compatible chips available that I want to play with
to get my feet wet.  I know it will be very simple to those of you who have
been doing this awhile, but I'm proud of it.  You know, baby steps and all.

That's what I like about this group, everyone helps everyone.  
I want to share this with everyone and as soon as I get a web site up, I let
you guys know about it.  In the meantime, you can read about SiMon6809 at
the following web site.
http://www.8bitforce.com/simon6809/
He mentions a SiMon6809 Turbo version, but as yet he has not released any
schematics.  We are waiting...
http://www.8bitforce.com/simon6809_turbo/
My chip has arrived, so I now have this really cool V9958 Video Display
Processor that I want to add to my SiMon6809 computer so I can play with it,
but it won't fit into my breadboard.  It uses 0.07" pin spacing instead of
0.1" pin spacing.  I guess to keep it from being as big as the original
MC68000 MPU.  That was an enormous chip, but I loved it!  
I scoured the internet last night looking for sdip64 to dip64 adapters, but
I couldn't find any.  :(  Correction, I found one for several hundred $.
Wow!  It seemed to me just an sdip64 zif socket on a PCB with header pins
sticking out the bottom so it will fit a programmer.
I wonder if any hobbyists have completed an sdip64 to dip64 adapter PCB.  I
am definitely interested in getting one.  I'm still looking.
Kip

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of Kip Koon

Daniel,
This is a much clearer version than I have.  However, the V9958 Technical
Manual v1.0 only covers the differences.
You will also need the V9938 Technical Data Book at the following address.
http://www.msxarchive.nl/pub/msx/docs/datasheets/v9938.pdf
I have an excellent PDF of it, but I don't remember where I got it, so I'll
email  to anyone who needs it.  I'll post it here when I find it.
Kip

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of Daniel Campos

http://primrosebank.net/computers/mtx/projects/mtxplus/V9958-Technical-manua
l_v1.0.pdf

V9958 is used on the MSX2+ and TurboR MSX machines.

Regards,
Daniel

2013/4/4 Alan Jones <alwanbi at live.com>

> Hi Kip,
> Can you point me to the data sheet for V9958 chip?
> I would like to take a look at it.
> Thanks...
>
> Alan
>
> -----Original Message-----
> From: coco-bounces at maltedmedia.com
> [mailto:coco-bounces at maltedmedia.com]
> On
> Behalf Of Kip Koon
> Sent: Thursday, April 4, 2013 3:44 AM
> To: Coco Email List
> Subject: [Coco] Adapting a V9958 64-pin Chip to fit a Solderless 
> Breadboard
>
> Has anyone ever adapted a V9958 Video Graphics Controller 64-pin chip 
> with tiny spacing on the pins to fit a solderless breadboard?  I was 
> not aware of this very small pin spacing when I was researching the 
> chip.  I liked the chip's capabilities and at $6.40 a chip, the price 
> was too good to pass up!
> This will take some doing.  I may have to compromise and use an 
> earlier chip.  Maybe the TMS9918 or TMS9928.  Were there any others in 
> that chip line.
>
> Were there other chip manufacturers with interesting Video Graphics 
> chips I should consider?
>
> Kip
>
>
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