![](/images/new-backgrounds/1301021/30102121x1.webp)
Interface Pin Assignment
DRIVE INTERFACE SIGNALS
PIN | SIGNAL | PIN | SIGNAL |
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1 | RESET | 2 | GROUND |
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3 | DD 7 | 4 | DD 8 |
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5 | DD 6 | 6 | DD 9 |
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7 | DD 5 | 8 | DD 10 |
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9 | DD 4 | 10 | DD 11 |
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11 | DD 3 | 12 | DD 12 |
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13 | DD 2 | 14 | DD 13 |
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15 | DD 1 | 16 | DD 14 |
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17 | DD 0 | 18 | DD 15 |
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19 | GROUND | 20 | KEY |
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21 | DMARQ | 22 | GROUND |
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23 | DIOW/STOP | 24 | GROUND |
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25 | DIOR/ | 26 | GROUND |
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| HSTROBE |
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27 | IORDY/ | 28 | CSEL |
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| DSTROBE |
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29 | DMACK | 30 | GROUND |
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31 | INTRQ | 32 | IOCS16 |
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33 | DA1 | 34 | PDIAG |
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35 | DA0 | 36 | DA 2 |
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37 | CS0 | 38 | CS1 |
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39 | DASP | 40 | GROUND |
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41 | +5V (LOGIC) | 42 | +5V (MOTOR) |
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43 | GROUND | 44 | RESERVED |
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Note: Symbol () in front of signal indicates negative logic.
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