Mega Drive Joystick

From HwB

(Difference between revisions)

Latest revision as of 22:19, 2 January 2007

Available at the Sega Mega Drive console.

Pinout

9 PIN D-SUB MALE at the Console.

9 PIN D-SUB FEMALE at the joystick cable.

Pin	Select=L	Select=H
1	Up
2	Down
3	Ground	Left
4	Ground	Right
5	+5VDC
6	Button A	Button B
7	Select
8	Ground
9	Start	Button C

Note: Direction is Computer relative Joystick.

Usually signals are multiplexed using a 74HC157. The console sets pin 7 (Select) to Low (GND) or High (+5VDC) to choose what the controller should return on pins 3, 4, 6 & 9.

Contributions

Joakim Ögren

Sources

How to program the Sega Genesis/Mega Drive

@@ Line 12: / Line 12: @@
 {| {{border}}
-! Pin !! Dir        !! Description
+! Pin !! Dir        !! Select=L !! Select=H
 |-
-| 1   || {{arrowl}} || Up
+| 1   || {{arrowl}} || colspan="2" | Up
 |-
-| 2   || {{arrowl}} || Down
+| 2   || {{arrowl}} || colspan="2" | Down
 |-
-| 3   || {{arrowl}} || Left
+| 3   || {{arrowl}} || Ground    || Left
 |-
-| 4   || {{arrowl}} || Right
+| 4   || {{arrowl}} || Ground    || Right
 |-
-| 5   || {{arrowr}} || +5VDC
+| 5   || {{arrowr}} || colspan="2" | +5VDC
 |-
-| 6   || {{arrowl}} || Button (Left)
+| 6   || {{arrowl}} || Button A  || Button B
 |-
-| 7   || {{arrowl}} || Button (?)
+| 7   || {{arrowr}} || colspan="2" | Select
 |-
-| 8   || {{arrow}}  || Ground
+| 8   || {{arrow}}  || colspan="2" | Ground
 |-
-| 9   || {{arrowl}} || Button (Right)
+| 9   || {{arrowl}} || Start     || Button C
 |}
 ''Note: Direction is Computer relative Joystick.''
+Usually signals are multiplexed using a 74HC157. The console sets pin 7 (Select) to Low (GND) or High (+5VDC) to choose what the controller should return on pins 3, 4, 6 & 9.
 == Contributions ==