Connector Pin Assignments
ATA/ATAPI (IDE) Standard Drive Cable
Connector
Pin | Signal | Pin | Signal | Pin | Signal |
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1 | Reset | 15 | DD1 | 29 | DMAK |
2 | Ground | 16 | DD14 | 30 | Ground |
3 | DD7 | 17 | DD0 | 31 | INTRQ |
4 | DD8 | 18 | DD15 | 32 | IOCS16 |
5 | DD6 | 19 | Ground | 33 | DA1 |
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6 | DD9 | 20 | (Key) | 34 | PDIAG (cable detect) |
7 | DD5 | 21 | DMARQ | 35 | DA0 |
8 | DD10 | 22 | Ground | 36 | DA2 |
9 | DD4 | 23 | DIOW | 37 | CS1FX |
10 | DD11 | 24 | Ground | 38 | CS3FX |
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11 | DD3 | 25 | DIOR | 39 | DASP |
12 | DD12 | 26 | Ground | 40 | Ground |
13 | DD2 | 27 | IORDY |
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14 | DD13 | 28 | CSEL |
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| Service Reference Guide |
