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C64 Control Port

9 PIN D-SUB MALE (At the computer)
9 PIN D-SUB FEMALE (At the joystick cable)

9 PIN D-SUB MALE at the computer.
9 PIN D-SUB FEMALE at the joystick cable.

Control Port 1

Pin Name Dir Comment
1 JOYA0 <--  
2 JOYA1 <--  
3 JOYA2 <--  
4 JOYA4 <--  
5 POT AY <->  
6 BUTTON A/LP <->  
7 +5V --> 50 mA max
8 GND ---  
9 POT AX <->  

Control Port 2

Pin Name Dir Comment
1 JOYB0 <--  
2 JOYB1 <--  
3 JOYB2 <--  
4 JOYB4 <--  
5 POT BY <->  
6 BUTTON B <->  
7 +5V --> 50 mA max
8 GND ---  
9 POT BX <->  
Note: Direction is Computer relative Device.
Note: Pot is a linear 470 kOhm (±10 %)
Contributor: Joakim Ögren, Arwin Vosselman
Sources: Amiga 4000 User's Guide from Commodore
Sources: Commodore 64 Programmer's Reference Guide
Please send any comments to Joakim Ögren.