Re: 14MHz 65816??

[wbaguhn@nyx10.cs.du.edu (Will Baguhn)]

In article <4ut0ev$r24@News.Dal.Ca>,
Tony Cianfaglione <tony@ccn.cs.dal.ca> wrote:
>   I have been in contact with Western Digital regarding their 14 MHz 
>65816 chip which they tell me fits onto the accelerator cards such as the 
>TransWarp GS or Zip GS.  They were not sure if it would replace the stock 
>GS chip that plugs into the motherboard, which is what I want to do.  I 
>find the various accelerator cards too buggy to rely on.
>
>   They keep crashing in the middle of vital projects and I'm forced to 
>disable the cards and run at the native speed.  Is anyone familiar with 
>the 14 MHz chips and can you get one to plug into the motherboard and 
>chuck the accelerator cards altogether?
>
>Thanks,
>Tony 

Of course you can plug a 14 MHz processor into the motherboard!
It will run at 2.8 MHz, just like the old processor; because that's
the crystal that's on the motherboard telling it how fast to go.

(BTW: for going on the motherboard, you'll want a 65816 that's a DIP
package.  For the ZipGS/TransWarpGS, you'd want the PLCC.)

You might try getting a slightly slower crystal on your accelerator.
Digi-Key has them (1-800-DIGI-KEY).  Remember that you need a crystal
that is four times the speed you want to go, and you might need to know
how to solder if you want to change the crystal yourself.

Good Luck.  (perhaps check out http://www.nyx.net/~wbaguhn/zip.html
when it comes back up (server errors as of about 5 minutes ago).
Otherwise there's a pretty good page over on Nathan Mates' site...
http://www.visi.com/~nathan (sorry, can't remember the URL exactly)
-- 
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