FRS' MSX Page


JoySaturn: Sega Saturn to MSX adapter

This is the male connector on the joystick:
Sega Saturn male connector on controller


The Sega Saturn joystick port is just a Sega Megadrive joystick port with a different connector. This happened because Atari sued Sega because of the DE-9 joystick connector.


In other words, a JoySaturn adapter is nothing more than a JoyMega adapter with a different connector. You can buy a cheap Sega Saturn extension cord on eBay and cut it in the middle to make the adapter.

Saturn
pin
NC7ST04M5X
pin
MSX
pin
Pin
name
1
5
5
Vcc
2

2
Down
3

1
Up
4
2
-
TH
-
4
8
Output
5

7
TR/TRG2
6

6
TL/TRG1
7

4
Right
8

3
Left
9
3
9
GND

Note: Sega Saturn controllers have a different protocol and won't be recognized by standard MSX software or BIOS. They need specific software support that is available on the MSX HIDlib.