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I have a set of those wireless controllers for N64. Extremely craptastic if you ask me. The buttons are all kind of loose and clicky and simply don't feel right. The control stick is also really loose and you have to move it quite a bit before anything registers.

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4908 2 DOCS Wireless Controllers for N64 - Acclaim Price Comparison 2 DOCS Wireless Controllers for N64
Compare prices Acclaim Nintendo 64 Video Games

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Nintendo 64 Controller FAQ V0.2
Written By $up3rDud3

All Copyrights and Trademarks belong to their perspective owners.

This work was done via reverse engineering the controller itself.
No information was obtained via outside channels. All work was done on
a N64 controller with no prior knowledge of its working. The hope was to
interface the controller with a common pc game interface. Now working on
full ISA interface.

It was deduced that it is a serial type interface, and the other two wires were Power
and ground. So once you take the thing apart, you see the main controller
wire going to a plug on the main board. These three wires are color coded as
follows

rot - 3.3V
schwarz - Masse
weiß - Data : "3.3V Logic Level"

Sicht auf den Stecker des N64 Controllers:

_____
/ \
| O O O |
|_______|

1 2 3

1 - GND
2 - DATA - 3.3V Logic Level
3 - VCC - 3.3V



1.0 Lesen der Controller- (bzw. Steuer-) Position und Tasteninformation


Um die Positions-Informationen des Controllers auszulesen, braucht der Datenstrom einen 41 Bit Befehl.
Um die Reihenfolge (Sequenz) zu verstehen muss die Charakteristik des bit streams definiert werden.

Jedes bit ist 4us lang (except 2)
Eine null wird durch "3us low", also 0V und "1us high", also 3.3V dargestellt.
Eine eins wird durch "1us low", also 0V und "3us high", also 3.3V dargestellt.
Für den Lese-Status Befehl müssen 7 nullen und 2 einsen zum Controller gesendet werden (also 00000011).
Dies wird auf der unten angehängen Grafik dargestellt!

Um den Transmitter zu realisiert sollte also "Tristate-Logic" verwendet werden. (ich würde das mal als "Rhytmus mit 3 verschiedenen Zuständen" übersetzen)
Für einen "Nullriegel" (ich dneke mal Stoppbefehl) benutzen der Eingang eines niedrigen "Tristatepuffers" und den "Tristatesteuerstift" als die Dateneingabe.


For a zero tie the input of a tristate buffer low and use the tristate control pin as the data input.
The nintendo controller has a 3.3V pull up on the line so if you put the buffer in
tristate the data line will go to 3.3V (high). If you put the buffer in drive mode the
line will go to 0V (low). This also allows you to go directly to read mode in your logic
once you send the last command bit.

For reading the controller, once the last bit goes to the high state, approximately 2us later the controller
starts sending the requested data back to you, so make sure your receiver is ready.

....Comming soon full isa schematic!


1.1 Bit Zuordnung

Die 32 Bits (0-31) nach dem "Start-Bit werden wie folgt übersetzt:


Bit 0 - 15 : Tasten Wertebereich

-> Null (0) = nicht gedrückt
-> Eins (1) = gedrückt

Bit 0 - A
1 - B
2 - Z
3 - Start
4 - Steuerkreuz oben
5 - Steuerkreuz unten
6 - Steuerkreuz links
7 - Steuerkreuz rechts
8 - Start+L+R : Gleichzeitig gedrückt (Befehl für Memorycard-Menü)
9 - ? Scheint unbenutzt zu sein
10 - L
11 - R
12 - C oben
13 - C unten
14 - C links
15 - C rechts


Bit 16 - 31 : Analogstick Position

Bit 16 -> 23 - X-Axe reading, 2's compliment
-128 = links (komplett)
0 = mitte
+128 = rechts (komplett)

Bit 24 -> 31 - Y-Axe reading, 2's compliment
+128 = oben (komplett)
0 = mitte
-128 = unten bottom (komplett)


1.2 Timing Information

The total position command takes 166us to execute, and the program I ran on the N64 polled the
controller every 16.667ms or a frequency of 60Hz.

1.3 Rumble Pack Commands

It appears as if the rumble pack commands are more difficult to decode when your trying to play
while hitting stop on the oscilloscope. So as far as I can tell until I get the controller
hooked up to a PC this is the format for the rumble pack commands. Use the same data format for
sending a 0 and a 1 bit.

0000-0011-1100-0000-0001-1011-(Send string of zeros the length of intensity required)-(6us pulse)-0000-0000

This is probably wrong, but oh well.

1.4 Memory Pack Commands

?????