Table | (Page | 3 | of | 3). | Current PCI 2.1 Class Code Definition |
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| Serial bus | controllers |
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| 00 |
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| FireWire | (IEEE | 1394) |
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C |
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| 01 |
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| ACCESS.bus |
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| 02 |
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| Serial | Storage | Architecture (SSA) |
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| 03 |
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| Universal | Serial | Bus (USB) |
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| 04 |
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| Fibre | channel |
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Table |
| (Page | 1 | of | 2). |
| PCI specification | ||||||||
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Base Class | S2 |
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| S3 | - |
| Description |
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| S4 |
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0 |
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| 10 |
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| AC | Power |
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| 11 |
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| DC | Power |
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| 20 |
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| Temperature | Related Problem |
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| 21 |
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| Fans |
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| Cables |
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| Terminators |
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| 50 |
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| Operator | panels |
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| Reserved |
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| Reserved |
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| Reserved |
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| A0 |
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| ROS | Heartbeat |
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| B0 |
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| O/S | Heartbeat |
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| D0 |
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| Unknown device |
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| E0 |
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| Security |
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