| pin | 内容 | pin | 内容 |
|---|---|---|---|
| 1 | GND | 2 | RPM |
| 3 | GND | 4 | Reserved |
| 5 | GND | 6 | Reserved |
| 7 | GND | 8 | Index |
| 9 | GND | 10 | Motor Enable A |
| 11 | GND | 12 | Drive Sel B |
| 13 | GND | 14 | Drive Sel A |
| 15 | GND | 16 | Motor Enable B |
| 17 | GND | 18 | Dir |
| 19 | GND | 20 | Step |
| 21 | GND | 22 | Write data |
| 23 | GND | 24 | Write gate |
| 25 | GND | 26 | Track 0 |
| 27 | GND | 28 | Write protect |
| 29 | GND | 30 | Read data |
| 31 | GND | 32 | Head select |
| 33 | GND | 34 | Disk Change |