30 Dec
2001
30 Dec
'01
12:30 p.m.
--- Richard Erlacher <edick(a)idcomm.com> wrote:
Have another look at that UART on the MITS board and
see if it isn't an
AY-5-1013A.
Oops... midnight typo.
The spacing on that P2 connector is probably
0.157" (close
enough to 0.154, but ... )
OK... I did not get out the micrometer...
I've got one of those COMUTIME FDC's, but,
alas, like you, Ethan, I've
got no documentation.
I'm sure that's more common than the reverse.
I also believe I have some source code for the board
_somewhere_.
If you ever run across it, I'd like to hear it.
Those SSM video boards were pretty popular, though
they are capable of
only 16 lines of 64 characters
Right... that's in the docs.
That 24-pin DIP missing from the video board might
well have been a
character generator.
Could be. There isn't one elsewhere on the board, but there are a couple
of EPROMs marked "GEN".
..you may find it matches the pinout of either a 2513
(GI)
character generator or a 2716 (they're not the same).
I have a couple of 2513 chips - one or two with this pile and I think
one more with my TVT-6.
-ethan
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