Diskette drive connector
2 | 34 |
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133
Table 24. Diskette drive connector pin assignments
Pin | Signal | I/O | Pin | Signal | I/O |
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1 | Drive 2 installed # | I | 18 | Direction in# | O |
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2 | High density | O | 19 | Ground | N/A |
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3 | Not connected | N/A | 20 | Step# | O |
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4 | Not connected | N/A | 21 | Ground | N/A |
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5 | Ground | N/A | 22 | Write data # | O |
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6 | Data rate 0 | N/A | 23 | Ground | N/A |
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7 | Ground | N/A | 24 | Write enable# | O |
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8 | Index# | I | 25 | Ground | N/A |
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9 | Reserved | N/A | 26 | Track0# | I |
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10 | Motor enable 0# | O | 27 | MSEN0 | I |
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11 | Ground | N/A | 28 | Write protect# | I |
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12 | Drive select 1# | O | 29 | Ground | N/A |
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13 | Ground | N/A | 30 | Read data# | I |
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14 | Drive select 0# | O | 31 | Ground | N/A |
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15 | Ground | N/A | 32 | Head 1 select# | O |
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16 | Motor enable 1# | O | 33 | Data rate 1 | N/A |
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17 | MSEN1 | I | 34 | Diskette change# | I |
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Appendix A. Connector pin assignments 43
