
Chapter 3 - MACSI Host Interface
Table
MAC Control/Status
Offst | 15 | 14 |
| 13 | 12 | 11 | 10 |
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| 5 | 4 | 3 | 2 |
| 1 | 0 |
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0x00 |
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| Command Code |
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0x01 |
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| Command Options |
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0x02 |
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| Return Status |
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0x03 |
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| Normal Completion Level |
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| Normal Completion Vector |
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0x04 |
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| Error Completion Level |
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| Error Completion Vector |
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0x05 |
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| DMA Transfer Control Word |
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0x06 |
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| Buffer Address (MSW) |
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0x07 |
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| Buffer Address (LSW) |
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0x08 |
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| Reserved |
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0x09 |
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| Transfer Size |
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0x0A |
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| Reserved |
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0x0B |
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| MAC Status / Control |
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0x0C |
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| Intel 82596 Status / Control |
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0x0D |
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| Transmit Functions |
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0x0E |
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| Intel 82596 Status / Control |
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0x0F |
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| Receive Functions |
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0x10 |
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| Reserved |
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0x11 |
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| MAC Returned Information |
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Command Code
This field must contain 0x43 to execute the MAC Control IOPB.
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