Rumor has it that Tony Duell may have mentioned these words:
> I wrote before that...
> > "TIL-XPC" and "TIL SYSTEMS LTD. XPC91 REV 2.0"
> >
> > It's got 4 RJ45 ports (I'm guessing RS-232, from all the 1488's &
> > 1489's...) 4 R6551's, an MC68B54 & an MC68B09EP... Is this just a 4-port
> > serial board with the 6809 playing traffic cop, or is it an "elusive" OS-9
> > - based SBC?
>
>I doubt it's the latter :-(. It sounds like a mult-port serial card (the
>4 off 6551s...). The oddity is the 68B54. That's a synchronous serial
>chip, used for some low-cost networks like Acorn's Econet (and for other
>things of course). I wonder what it's doing here....
I know -- I'll be able to put up pix tonite, but here's a little more info
that "makes one wonder..."
It's got 64K of RAM -- not sure why a multiport board would need that much
"oomph..." ;-) and it's got 4 or 5 PALs (I think... they've got labels on
them ["XPC U23" is the label of one - the labels correspond to the
silkscreen of the sockets]) I didn't want to peel the labels, altho I don't
mind -- I'd rather see things work, than labels stay in place... ;-)
It's also got 2 single-hex-digit rotary dial switches [0-F] not sure what
those would be used to select... Not that many DMA channels in an AT class
machine, unless it needs 2 IRQs? (They're pointing to 5 and 6, currently)
Also, there are 3 1488's and 3 1489s, so maybe the first port isn't RS232?
Dunno...
Oh, and the card's a full length, or damn near, anyway... ;-)
Anywho, I'll write back when I have pix... Tony - is there any format of
pictures you can view, or are you text-only? I have some software that can
spit out IFF (Amiga, isn't it?), SUN, SGI & Targa...
Thankz,
Roger "Merch" Merchberger
--
Roger "Merch" Merchberger -- sysadmin, Iceberg Computers
zmerch_at_30below.com
What do you do when Life gives you lemons,
and you don't *like* lemonade?????????????
Received on Mon Mar 10 2003 - 18:55:00 GMT