 (at the controller & CD-ROM)
 (at the controller & CD-ROM)
 (at the cable.)
 (at the cable.)
40 PIN IDC MALE at the controller & CD-ROM.
40 PIN IDC FEMALE at the cable.
| Pin | Name | Description | 
|---|---|---|
| 1 | A0 | Address Bit 0 | 
| 2 | GND | Ground | 
| 3 | A1 | Address Bit 1 | 
| 4 | GND | Ground | 
| 5 | n/c | Not connected | 
| 6 | GND | Ground | 
| 7 | n/c | Not connected | 
| 8 | GND | Ground | 
| 9 | n/c | Not connected | 
| 10 | GND | Ground | 
| 11 | n/c | Not connected | 
| 12 | GND | Ground | 
| 13 | INT | Interrupt | 
| 14 | GND | Ground | 
| 15 | REQ | Data request For DMA | 
| 16 | GND | Ground | 
| 17 | ACK | Data Acknowledge For DMA | 
| 18 | GND | Ground | 
| 19 | RE | Read Enable | 
| 20 | GND | Ground | 
| 21 | WE | Write Enable | 
| 22 | GND | Ground | 
| 23 | EN | Bus Enable | 
| 24 | GND | Ground | 
| 25 | DB0 | Data Bit 0 | 
| 26 | GND | Ground | 
| 27 | DB1 | Data Bit 1 | 
| 28 | GND | Ground | 
| 29 | DB2 | Data Bit 2 | 
| 30 | GND | Ground | 
| 31 | DB3 | Data Bit 3 | 
| 32 | GND | Ground | 
| 33 | DB4 | Data Bit 4 | 
| 34 | GND | Ground | 
| 35 | DB5 | Data Bit 5 | 
| 36 | GND | Ground | 
| 37 | DB6 | Data Bit 6 | 
| 38 | GND | Ground | 
| 39 | DB7 | Data Bit 7 | 
| 40 | GND | Ground |