Apple Computer Buses

Apple IIc Joystick Pin out

This listing is of an obsolete and out-dated interface which was only used on the Apple IIc computer.
The current Joystick interface on the newest Apple Computer offering may use the USB interface and may not provide a 9-pin D-Sub connector.
Connector formats based on a 9-pin D-subminiature connector are no longer used.
This is a legacy pin out which is no longer used in computers produced today.

9 Pin D-Sub miniature connector
9 Pin D-Sub

9 Pin D-Sub Connector Pinout
Pin name Signal Description
1 GAMESW1 Switch input 1 (sometimes called paddle button 1).
2 +5V +5 VDC (max 100mA)
3 GND System ground.
4 n/c The pin is not used
5 PDL0 Paddle 0 hand controller input. Must be connected to a 150KW variable resistor connected to +5V.
6 n/c Not connected
7 GAMESW0 Switch input 0 (sometimes called paddle button 0).
8 PDL1 Paddle 1 hand controller input; must be connected to a 150KW variable resistor connected to +5V.
9 n/c The pin is not used

Editor note; the table uses a html symbol command, the resistor has a value of 150k ohms.
Pins with no internal connections are labeled n/c, and mean there is no electrical signal on the pin.

Apple pinout; Apple Computer Buses [all other buses used with an Apple].

Related PC Topics; PC Joystick Pin Out, and PC MIDI Pin Out.

This cable interface should no longer be used in new designs.
The pin out data should only be used for historical information.
Even de-bugging usage would have past at this point, as the data is just to old, but still valid.
Design advice; You should avoid using a D-sub connector, they are physically larger than most alternatives.
This is an electrical interface, but not one an engineer would normally design a product to [other than a joystick].

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Modified 7/18/2015
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