GAMEPORT Belegungsplan

                           Soundblaster GAMEPORT

                  JOYSTICK #2                 JOYSTICK #1
                                        1 o------------------------------+
+------------------------------o  9            BUTTON#1        RESISTOR-X|
|RESISTOR-X         BUTTON#1            2 o------o o-----+     --/\/\/\--*
*--/\/\/\--     +-----o o------o 10                      |          |    |
|    |          |                       3 o--------------|----------+    |
|    +----------|--------------o 11                      |               |
|RESISTOR-Y     |                       4 o--------------*               |
+--/\/\/\--     | MIDI TxD <---o 12                      |     RESISTOR-Y|
     |          *-----------------------5-o              |     --/\/\/\--+
     +----------|--------------o 13                      |          |
                |   BUTTON#2            6 o--------------|----------+
                +-----o o------o 14            BUTTON#2  |
                                        7 o------o o-----+
                  MIDI RxD >---o 15
                                        8 o

ANMERKUNG: Intern sind PIN 1-8-9 (+5V), sowie PIN 4-5 (GND) verbunden

+--------------------------------------------------------------------------+
| pin| I/O | Bedeutung (bei SBpro)  | GAMEPORT I/O-Mapping                 |
+----+-----+------------------------+--------------------------------------+
|  1 |  -  | JOY#1 +5V (COORDINATE) | 0200h Schreibregister GAMEPORT       |
|  2 |  in | JOY#1 BUTTON#1         |       das Schreiben eines beliebigen |
|  3 |  in | JOY#1 X-COORDINATE     |       Wertes in das Register startet |
|  4 |  -  | JOY#1 GND (BUTTON)     |       die 4 monostabilen Kippstufen  |
|  5 |  -  | JOY#2 GND (BUTTON)     |       Impulsdauer=Stellung des Hebels|
|  6 |  in | JOY#1 Y-COORDINATE     +--------------------------------------+
|  7 |  in | JOY#1 BUTTON#2         | 0201h Leseregister GAMEPORT          |
|  8 |  -  | GND (SHIELD)           |  bit0 Impulsdauer X-Koordinate JOY#1 |
|  9 |  -  | JOY#2 +5V (COORDINATE) |  bit1 Impulsdauer Y-Koordinate JOY#1 |
| 10 |  in | JOY#2 BUTTON#1         |  bit2 Impulsdauer X-Koordinate JOY#2 |
| 11 |  in | JOY#2 X-COORDINATE     |  bit3 Impulsdauer Y-Koordinate JOY#3 |
| 12 | out | MIDI TxD               |  bit4 Knopf 1 von JOYSTICK #1        |
| 13 |  in | JOY#2 Y-COORDINATE     |  bit5 Knopf 2 von JOYSTICK #1        |
| 14 |  in | JOY#2 BUTTON#2         |  bit6 Knopf 1 von JOYSTICK #2        |
| 15 |  in | MIDI RxD               |  bit7 Knopf 2 von JOYSTICK #2        |
+--------------------------------------------------------------------------+