[Coco] ADOS-3 (was: 26-3029 floppy disk controller)
Roger Merchberger
zmerch at 30below.com
Wed Jan 18 00:16:42 EST 2006
Rumor has it that Paul T. Barton may have mentioned these words:
>And here it is: (looks like A13 on pin 26)
>Use Courier font.
[[ snippety of good chip info ]]
I figured that the chip would add the address to a non-connected pin on the
2764... but: which remaining address line should you connect that to? A13
on the CoCo's buss as well? Will ROM accesses on the card only happen when
/CART or /CTS are asserted?
According to my Tandy CoCo3 Service Manual, /CTS is only asserted for
$C000-$DFFF, so something's gonna have to say "Lookie here - more ROM!"
It's been too long since I diddled with this stuff, and the info is rusty
in my brain... ;-)
Laterz,
Roger "Merch" Merchberger
--
Roger "Merch" Merchberger -- SysAdmin, Iceberg Computers
_±±_ zmerch at 30below.com
(©||®) If at first you don't succeed, nuclear warhead
_)(_ disarmament should *not* be your first career choice.
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