Re: Joystick port pin-outs

[Erick Wagner <wagnere@netcom.com>]

mportune@telerama.lm.com (Matt Portune) wrote:
>Can somebody e-mail me or post the pin-outs of the GS DB9 joystick port? 

(Looking at DB-9 connector on Apple IIe/IIc/IIc+/IIgs)

+---------------------+
 \ 5   4   3   2   1 /
  \  9   8   7   6  /
   +---------------+

1=PB1  2=+5 V  3=Gnd
4=GC2  5=GC0   6=PB2
7=PB0  8=GC1   9=GC3

GC0 : Game Controller 0 input.  An analog input designed to accept
a variable resistance in the range of 0 to 150 KW (ohms).  Each GC
input is part of an analog-to-digital (A-to-D or A/D) conversion
circuit that allows an analog resistance value to be converted into
a digital quantity.  The resistance forms part of a simple "RC"
(resistor-capacitor) timing circuit that sets the time constant for
the 558 integrated circuit (a quad version of the 555 Timer).
GC1 : Game Controller 1 input.  Same as GC0.
GC2 : Game Controller 2 input.  Same as GC0.
GC3 : Game Controller 3 input.  Same as GC0.
PB0 : (SW0) Push Button 0 input.
PB1 : (SW1) Push Button 1 input.
PB2 : (SW2) Push Button 2 input.