Sega Saturn Cartridge Information
 by Charles MacDonald
 WWW: http://cgfm2.emuviews.com

 Overview:

 Here is a preliminary description of the Sega Saturn cartridge connector.
 It is quite different from what's used in the ST-V system.

 I put this together by tracing out the connections in a King of Fighters '95
 and PAR cartridge, so some of the information may be specific to them.

 Pin assignments:

 Components side (A: 36 pins, key, B: 31 pins)

 A01 - VCC
 A02 - VCC
 A03 -
 A04 -
 A05 -
 A06 -
 A07 - ??? (KOF: Tied to pin A08)
 A08 - GND
 A09 -
 A10 -
 A11 -
 A12 -
 A13 - GND
 A14 -
 A15 -
 A16 -
 A17 -
 A18 - GND
 A19 -
 A20 -
 A21 -
 A22 -
 A23 - GND
 A24 -
 A25 -
 A26 -
 A27 - VCC
 A28 - 
 A29 - GND
 A30 -
 A31 - PAR: PAL16V8 pin 8 
 A32 - PAR: PAL16V8 pin 11
 A33 - CPU A19 / PAR: PAL16V8 pin 7
 A34 - CPU A17
 A35 - CPU A15
 A36 - GND

 B01 - CPU A13
 B02 - CPU A6
 B03 - CPU A5
 B04 - CPU A4
 B05 - GND
 B06 - CPU A3
 B07 - CPU A2
 B08 - CPU A1
 B09 -
 B10 - GND
 B11 - KOF: ROM /OE, PAR: 22V10 pin 3
 B12 - PAR: 16V8 pin 12
 B13 - PAR: 16V8 pin 1
 B14 - PAR: 22V10 pin 6
 B15 - PAR: 22V10 pin 7
 B16 -
 B17 -
 B18 - GND
 B19 - CPU D7
 B20 - CPU D6
 B21 - CPU D5
 B22 - CPU D4
 B23 - GND
 B24 - CPU D15
 B25 - CPU D14
 B26 - CPU D13
 B27 - CPU D12
 B28 - GND
 B29 - GND
 B30 -
 B31 - VCC

 Solder side (D: 31 pins, key, C: 36 pins)

 C01 - VCC
 C02 - VCC
 C03 -
 C04 -
 C05 -
 C06 -
 C07 -         
 C08 - GND
 C09 -
 C10 -
 C11 -
 C12 -         
 C13 - GND
 C14 -
 C15 -
 C16 -
 C17 -         
 C18 - GND
 C19 -
 C20 -
 C21 -
 C22 -        
 C23 - GND
 C24 -
 C25 -
 C26 -
 C27 - VCC
 C28 -
 C29 - GND
 C30 - GND
 C31 - PAR: 16V8 pin 5
 C32 - PAR: 16V8 pin 2
 C33 - PAR: 16V8 pin 6
 C34 - CPU A18
 C35 - CPU A16
 C36 - GND

 D01 - CPU A14
 D02 - CPU A11
 D03 - CPU A12
 D04 - CPU A7
 D05 - GND
 D06 - CPU A8
 D07 - CPU A10
 D08 - CPU A9
 D09 - CPU A0
 D10 - GND
 D11 - KOF: ROM /CE, PAR: 22V10 pin 2
 D12 -
 D13 - PAR: Flash memory /WE
 D14 -
 D15 -
 D16 - PAR: 22V10 pin 10
 D17 -
 D18 - GND
 D19 - CPU D0
 D20 - CPU D1
 D21 - CPU D2
 D22 - CPU D3
 D23 - GND
 D24 - CPU D8
 D25 - CPU D9
 D26 - CPU D10
 D27 - CPU D11
 D28 - GND
 D29 - GND
 D30 -
 D31 - VCC