
R
Chapter 9: Configuration and Status
Register 1: Status Register
MDIO Register 1: Status Register
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
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Reg 1 |
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| 10Mb/s FULL DUPLEX | 10Mb/s HALF DUPLEX | EXTENDED STATUS | UNIDIRECTIONAL ANILITY | MF PREAMBLE SUPPRESSION | REMOTE FAULT | LINK STATUS | JABBER DETECT | EXTENDED CAPABILITY |
Table 9-4: Status Register (Register 1)
Bit(s) | Name | Description | Attributes | Default | |
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1.15 | Always returns a ‘0’ as | Returns 0 | 0 | ||
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| supported. |
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1.14 | Always returns a ‘0’ as | Returns 0 | 0 | ||
| Duplex | duplex is not supported. |
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1.13 | Always returns a ‘0’ as | Returns 0 | 0 | ||
| Duplex | duplex is not supported. |
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1.12 | 10 Mbps Full Duplex | Always returns a ‘0’ as 10 Mbps full | Returns 0 | 0 | |
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| duplex is not supported. |
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1.11 | 10 Mbps Half Duplex | Always returns a ‘0’ as 10 Mbps half | Returns 0 | 0 | |
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| duplex is not supported |
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1.10 | Always returns a ‘0’ as | Returns 0 | 0 | ||
| Duplex | duplex is not supported. |
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1.9 | Always returns a ‘0’ as | Returns 0 | 0 | ||
| Duplex | Duplex is not supported. |
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1.8 | Extended Status | Always returns a ‘1’ to indicate the | Returns 1 | 1 | |
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| presence of the Extended Register |
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| (Register 15). |
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1.7 | Unidirectional | Always returns a ‘1,’ writes ignored | Returns 1 | 1 | |
| Ability |
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1.6 | MF Preamble | Always returns a ‘1’ to indicate that | Returns 1 | 1 | |
| Suppression | Management Frame Preamble |
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| Suppression is supported. |
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1.5 | Auto- Negotiation | 1 = | Read only | 0 | |
| Complete | 0 = |
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| completed |
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122 | www.xilinx.com | Ethernet |
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| UG155 March 24, 2008 |