Master System Joystick

From HwB

(Difference between revisions)

Latest revision as of 23:38, 3 January 2007

Available at the Sega Master System, SG-1000 & SG-1000 Mark III console.

Pinout

9 PIN D-SUB MALE at the Console.

9 PIN D-SUB FEMALE at the joystick cable.

Pin	Dir	Description
1		Up
2		Down
3		Left
4		Right
5		+5VDC
6		TL
7		TH
8		Ground
9		TR

Note: Direction is Computer relative Joystick.

Gamepad

Signals are multiplexed. Select with TH.

Pin	TH=L	TH=H
1	Up
2	Down
3	0	Left
4	0	Right
6	Start	Button C
9	Button A	Button B

6-button Gamepad

A 6-button gamepad allows the extra buttons to be read based on how many times TH is switched from 1 to 0 (and not 0 to 1). Observe the following sequence (left to right):

Pin	TH=H	TH=L	TH=H	TH=L	TH=H	TH=L
1	Up			0	Button Z	1
2	Down			0	Button Y	1
3	Left	0	Left	0	Button X	1
4	Right	0	Left	0	Mode	1
6	Button C	Start	Button C	Start	Button C	Start
9	Button B	Button A	Button B	Button A	Button B	Button B

From this point on, the standard 3-button pad values will be returned if any further TH transitions are done.

Contributions

Joakim Ögren

Sources

SMS Power: Master System controller
Sega Genesis hardware notes v0.8 by Charles MacDonald

@@ Line 1: / Line 1: @@
-Available at the Sega [[Master System]] console.
+Available at the Sega [[Master System]], [[SG-1000]] & [[SG-1000 Mark III]] console.
 == Pinout ==
@@ Line 24: / Line 24: @@
 | 5   || {{arrowr}} || +5VDC
 |-
-| 6   || {{arrowl}} || Button (Left)
+| 6   || {{arrowl}} || TL
 |-
-| 7   || {{arrowl}} || Button (?)
+| 7   || {{arrowr}} || TH
 |-
 | 8   || {{arrow}}  || Ground
 |-
-| 9   || {{arrowl}} || Button (Right)
+| 9   || {{arrowl}} || TR
 |}
 ''Note: Direction is Computer relative Joystick.''
+=== Gamepad ===
+Signals are multiplexed. Select with TH.
+{| {{border}}
+! Pin !! TH=L     !! TH=H
+|-
+| 1   || colspan="2" | Up
+|-
+| 2   || colspan="2" | Down
+|-
+| 3   || 0        || Left
+|-
+| 4   || 0        || Right
+|-
+| 6   || Start    || Button C
+|-
+| 9   || Button A || Button B
+|}
+=== 6-button Gamepad ===
+A 6-button gamepad allows the extra buttons to be read based on how many times TH is switched from 1 to 0 (and not 0 to 1). Observe the following sequence (left to right):
+{| {{border}}
+! Pin !! TH=H     !! TH=L     !! TH=H     !! TH=L     !! TH=H     !! TH=L
+|-
+| 1   || colspan="3" | Up                 || 0        || Button Z || 1
+|-
+| 2   || colspan="3" | Down               || 0        || Button Y || 1
+|-
+| 3   || Left     || 0        || Left     || 0        || Button X || 1
+|-
+| 4   || Right    || 0        || Left     || 0        || Mode     || 1
+|-
+| 6   || Button C || Start    || Button C || Start    || Button C || Start
+|-
+| 9   || Button B || Button A || Button B || Button A || Button B || Button B
+|}
+From this point on, the standard 3-button pad values will be returned if any further TH transitions are done.
 == Contributions ==
@@ Line 40: / Line 82: @@
 == Sources ==
 * [http://www.smspower.org/dev/docs/wiki/?n=Pinouts.ControllerPort SMS Power: Master System controller]
+* [http://cgfm2.emuviews.com/txt/gen-hw.txt Sega Genesis hardware notes v0.8] by Charles MacDonald
 [[Category:Connector]]
 [[Category:Joystick]]
 [[Category:Obsolete]]