Master System Cartridge
From HwB
Available at Sega Master System.
Pinout
Front 2 50
==============
Back 1 49
| Pin | Name |
|---|---|
| 1 | +5V |
| 2 | WR |
| 3 | Mreq |
| 4 | ROM/RAM |
| 5 | M8-B |
| 6 | A14 |
| 7 | A13 |
| 8 | A8 |
| 9 | A9 |
| 10 | A11 |
| 11 | M0-7 |
| 12 | A10 |
| 13 | CrtOe |
| 14 | D7 |
| 15 | D6 |
| 16 | D5 |
| 17 | D4 |
| 18 | D3 |
| 19 | GND |
| 20 | GND |
| 21 | GND |
| 22 | D2 |
| 23 | D1 |
| 24 | D0 |
| 25 | A0 |
| 26 | A1 |
| 27 | A2 |
| 28 | A3 |
| 29 | A4 |
| 30 | A5 |
| 31 | A6 |
| 32 | A7 |
| 33 | A12 |
| 34 | ?? |
| 35 | +5V |
| 36 | A15 |
| 37 | M1 |
| 38 | IoReq |
| 39 | Refresh |
| 40 | Halt |
| 41 | Wait |
| 42 | Int |
| 43 | JyDs |
| 44 | BusReq |
| 45 | BusAck |
| 46 | Reset |
| 47 | Clk |
| 48 | JRead |
| 49 | MC-F |
| 50 | NMI |
Note:
- Japanese and South Korean consoles use 44-pin cartridges, same shape as Mark I and Mark II
- All other consoles use 50-pin cartridges with a different shape
- The difference in cartridge style is a form of regional lockout