4.9.2 IDE interface
Users can attach two IDE devices to the IDE channel, one drive must be set as the master and another as the slave. You may do this by setting the jumpers on the drives. Refer to the documentation that came with your drive for more information.
A jumper diagram usually appears on the top side of a hard disk drive.
IDEharddriveconnector
Table
IDE connector |
| CN3 |
| IDE connector | CN3 |
| ||
Pin | Signal |
| Pin | Signal | Pin | Signal | Pin | Signal |
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1 | IDE RESET |
| 74 | RESET | 2 | GND | 13 | GND |
3 | DATA 7 (*2) | 46 | HDD7 | 4 | DATA 8 (*2) | 41 | HDD8 | |
5 | DATA 6 (*2) | 44 | HDD6 | 6 | DATA 9 (*2) | 118 | HDD9 | |
7 | DATA 5 (*2) | 116 | HDD5 | 8 | DATA 10 (*2) | 45 | HDD10 | |
9 | DATA 4 (*2) | 117 | HDD4 | 10 | DATA 11 (*2) | 114 | HDD11 | |
11 | DATA 3 (*2) | 115 | HDD3 | 12 | DATA 12 (*2) | 120 | HDD12 | |
13 | DATA 2 (*2) | 42 | HDD2 | 14 | DATA 13 (*2) | 48 | HDD13 | |
15 | DATA 1 (*2) | 43 | HDD1 | 16 | DATA 14 (*2) | 47 | HDD14 | |
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17 | DATA 0 (*2) | 40 | HDD0 | 18 | DATA 15 (*2) | 119 | HDD15 | |
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19 | SIGNAL GND | 14 | GND | 20 | N/C | - | - | |
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21 | DMA REQUEST | 103 | HDDRQ | 22 | GND | 14 | GND | |
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23 | IO WRITE | (*2) | 32 | HDIOW | 24 | GND | 14 | GND |
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25 | IO READ | (*2) | 105 | HDIOR | 26 | GND | 15 | GND |
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27 | IO CHANNEL | 129 | IOCHRDY | 28 | GND (*1) | 15 | GND | |
| READY |
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29 | HDACK |
| 31 | HDACK | 30 | GND | 16 | GND |
31 | IRQ |
| 104 | HDIRQ | 32 | N/C | - | - |
33 | ADDR 1 |
| 107 | LA18 | 34 | N/C | - | - |
35 | ADDR 0 |
| 33 | LA17 | 36 | ADDR 2 | - | - |
37 | HARD DISK | 85 | HDCS0 | 38 | HARD DISK | 86 | HDCS1 | |
| SELECT 0 (*2) |
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| SELECT 1 (*2) |
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39 | IDE ACTIVE |
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| 40 | GND | 16 | - | |
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41 | VCC |
| 6 | +5 V | 42 | VCC | 6 | +5 V |
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43 | GND |
| 16 | GND | 44 | N/C | - | - |
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4 6
