40 pin IDC male connector at the
controller and CD-ROM.
40 pin IDC female connector 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 |