💾 Archived View for mirrors.apple2.org.za › archive › ground.icaen.uiowa.edu › Mirrors › uni-kl › ha… captured on 2024-06-20 at 12:20:30.
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this file contains info to connect lines between pc and apple
1.apple game i/o pins
to keyboard side as an apple user, you'll see
^^^^^^^^^^^
+---+ +---+ +----------+
+5 |1 +-+ 16| none none | 9 8| GND
PB0 |2 15| AN0 GC1 |10 7| GC2
PB1 |3 14| AN1 GC3 |11 6| GC0
PB2 |4 13| AN2 AN3 |12 5| strobe
strobe |5 12| AN3 AN2 |13 4| PB2
GC0 |6 11| GC3 AN1 |14 3| PB1
GC2 |7 10| GC1 AN0 |15 2| PB0
GND |8 9 | none none |16 +--+ 1| +5
+---------+ +---+ +---+
since keyboard is in
back board side this direction
2.pc parallel port 25-pin
please buy a 25-pin "jump wire connector"
(for rs-232 is ok , they both are 25-pin)
|\
| \
1 | \
2 | \
3 | | 14
4 | | 15
5 | | 16
6 | | 17
7 | | .
8 | | .
9 | | .
10 | | .
11 | | 25
12 | /
13 | /
| /
|/
3.line connection: 9 lines total
apple --- pc
GND pin 25 as GND
PB0 pin 2 as apple side handshake in (apple -> pc);data bit 0
PB1 pin 3 apple input data bit 1
PB2 pin 4 apple input data bit 2
GC0 pin 5 as apple side handshake in (pc -> apple)
AN0 pin 15 apple output data bit 0
AN1 pin 13 apple output data bit 1
AN2 pin 12 apple output data bit 2
AN3 pin 10 apple side handshake out