[sebhc] H-89 bus pin out Help
Joe Smith
bandit1921 at cox.net
Tue Mar 14 11:21:09 CST 2006
Here is a little text file from what I see on my Schematic, if you
look at the H17 Floppy connectors and the serial I/O connectors it
says different things,this is a combo of those and what it shows for
them on the CPU board.
At 04:53 PM 3/14/2006 +0000, you wrote:
>Bill Malcolm wrote:
>>Hi: All I did not see the H-89 BUS Pin out in the archive files (
>>for the slot card).
>
>The schematic for the floppy controller only identifies the pins
>that it uses, but it might be enough.
>
>http://www.sebhc.org/archive/documents/hardware/HZ89/H-88/H88-1-schematic.pdf
>
>It doesn't look like we have the schematic pull-outs for the H88/89
>manuals in there yet. I'll keep an eye out for some during my cleanup.
>
>-- Steven
>
>
>--
>Delivered by the SEBHC Mailing List
Joe Smith
joebandit
jtsdadinaz
Conbuilder debugger /Programmer
-------------- next part --------------
top 10 pin is: 1 and 10 are gnd, 2-9 are d0h thru d7h
big connector: 1 = +5v source
2 = gnd
3 = ba0h
4 = ba1h
5 = ba2h
6 = ba3h
7 = ba4h
8 = ba5h
9 = ba6h
10 = ba7h
11 = ba8h
12 = ba9h
13 = ba10h
14 = ba11h
15 = ba12h
16 = mem 0H
17 = mem 1H
18 = rd5
19 = rd6
20 = rd7
21 = +12v
22 = -12v
23 = +5v
24 = +12v
25 = gnd
More information about the Sebhc
mailing list