IDEA1 : IDE Interface Connector ( 44Pin 2.0mm Pitch Header )
| Pin No. | Description | Pin No. | Description |
| 1 | Reset # | 2 | Ground |
| 3 | Data 7 | 4 | Data 8 |
| 5 | Data 6 | 6 | Data 9 |
| 7 | Data 5 | 8 | Data 10 |
| 9 | Data 4 | 10 | Data 11 |
| 11 | Data 3 | 12 | Data 12 |
| 13 | Data 2 | 14 | Data 13 |
| 15 | Data 1 | 16 | Data 14 |
| 17 | Data 0 | 18 | Data 15 |
| 19 | Ground | 20 | NC |
| 21 | DMA REQ# | 22 | Ground |
| 23 | IOW # | 24 | Ground |
| 25 | IOR # | 26 | Ground |
| 27 | IOCHRDY | 28 | Ground |
| 29 | DMA ACK # | 30 | Ground |
| 31 | Interrupt | 32 | NC |
| 33 | SA 1 | 34 | NC |
| 35 | SA 0 | 36 | SA 2 |
| 37 | HDC CS 0# | 38 | HDC CS 1# |
| 39 | HDD Active | 40 | Ground |
| 41 | VCC | 42 | VCC |
| 43 | Ground | 44 | NC |
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