Gniazdo SIO
From Atariki
Controller Port (4 on 400/800, 2 on all others): 1 2 3 4 5 o o o o o o o o o 6 7 8 9 CX22 trackball meanings from Steve Wallace: 1. (Joystick) Forward Input X Direction 2. (Joystick) Back Input X Motion 3. (Joystick) Left Input Y Direction 4. (Joystick) Right Input Y Motion 5. B Potentiometer Input 6. Trigger Input / Light Pen Input. Port 4 only on 400 7. +5V 8. Ground 9. A Potentiometer Input