Re: TWGS GALs question...

[Tom O'Neill <tdon@delphi.com>]

More on this TransWarp GS card...
 
I note there is a daughterboard on this card with a chip which notes it is
Rev TWGS 1.5 8S
 
There are three other chips on this daughterboard...two of them are
dt 7164
545P
8910M
 
The third one is
dt 7165
545P
8716B1
 
This configuration differs from the photo in the AE Catalog (vintage 1990),
and I'm wondering just what I have here.  The 65C816 is a PL-7 so I assume
it is 7MHz...consistent with the oscillator which is rated at 28.000MHz.
there is a backstamp on the main board which indicates a quality inspection
and there is the further notation of "47R90" writ large in black magic marker
or some such.
 
I wonder if this has the 8k cache or if the daughterboard provides the
32k cache upgrade.  There's no documentation, so any information will
be helpful.  As I stated, I have the upgrade FAQ for speeding it up and I
hope to do so, but I'd like ot know from where I'm starting.
 
TIA,
Tom