Re: TWGS *cache* modification page

[supertimer@aol.com (Supertimer)]

CBS <jsmith66@hotmail.com> wrote:

>apple2.org/TWGS,  or go to apple2.org and click on the link on the left
>of the page.
>
>It tells how to upgrade your 8k Cache to 32k!
>
>Check this out.  At this URL: http://apple2.org/TWGS/TWGS32K.html
>
>There is a graphic, and instead of a silver can oscillator, there is an
>IC??

Oscillators can come in either metal or plastic cases.  The plastic
ones look like ICs from a distance.  They are functionally
the same.

>Anyway, there is alot of great information on the page.  It was all put
>together by Tony Diaz, The Apple II hardware guy.

Tony seems to agree that the TWGS is a better card than the
Zip GS.  ;-)

It is no surprise that the TWGS runs a little faster at the same
Mhz than the Zip GS.  The Zip GS has all the "slow down"
instructions built into the ASIC.  On the TWGS, now that
we have better 65C816 chips, we don't need to use
"slow down" GALs, but the Zip GS has no choice.  Also,
the size of the cache seems to be upgradable by simply
changing the programming of the ROM.  Of course now
that AE is out of business, this advantage is moot....