9 May
2008
9 May
'08
4:52 p.m.
Jeff Jonas wrote:
I'm getting the itch to get back to Z80 stuff.
Has anyone used the STD bus, or have any parts?
I have a few card cages and cards
but never enough I/O cards!
In the least, I was planning on using the STD bus
just for expansion cards to a single board computer.
I have a 9-slot STD bus backplane built into a piece of one-off lab equipment
from some physics experiment.
I made schematics
for some of the cards:
Mostek MDX-CPU-IIA - processor, system clock, CTC timer,
and static RAM or EPROM memory
Mostek MDX-MC - static RAM or EPROM memory
Mostek MDX-BCLK - TOD clock
(and some one-off IO cards)
if of any help or interest.
I was figuring on converting it into something perhaps useful sometime,
involving re-working the prototype IO cards into more general use. The
discussions of CP/M in ROM might be interesting to consider for it.
I was reminded of the STD bus while reading the other thread about minimal CP/M
or home-brew Z80 systems, the STD bus being tailored for the Z80 (and a lot
simpler than S100).