Sega Master System Controllers

Joystick/Thumbpad

9-pin female D-sub connector on the controller.

1. /North
2. /South
3. /West
4. /East
5. +5VDC Supply
6. /Button 1
7. -
8. GND
9. /Button 2

Direction/button pins are held high by the console, and are forced low by actions on the pad.

Genesis pad

The Genesis pad is really a superset of the SMS pad. It's almost identical, but adds a couple things.

9-pin female D-sub connector on the controller.

1. /North
2. /South
3. /West or CLK mirror
4. /East or CLK mirror
5. +5VDC Supply
6. /B or /A
7. CLK
8. GND
9. /C or /Start

While the console has the CLK line set high, the directions and buttons B and C are read.

When the consule pulls the CLK line low, pins 3 and 4 are pulled low by the controller to indicate to the console that a Genesis controller is attached, then buttons A and Start are read.

Light Phaser

9-pin female D-sub connector on the controller.

1. -
2. -
3. -
4. -
5. +5VDC Source
6. /Trigger
7. Light sensor
8. GND
9. -

Sports Pad

To be added.

Jay Tilton
06/28/98