gmacgrp_sgmii_rgmii_smii_control_status
The SGMII/RGMII/SMII Status register indicates the status signals received by the RGMII interface (selected at reset) from the PHY.
| Module Instance | Base Address | Register Address |
|---|---|---|
| i_emac_emac0 | 0xFF800000 | 0xFF8000D8 |
| i_emac_emac1 | 0xFF802000 | 0xFF8020D8 |
| i_emac_emac2 | 0xFF804000 | 0xFF8040D8 |
Size: 32
Offset: 0xD8
Access: RO
Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.
| Bit Fields | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
|
Reserved |
|||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|
Reserved |
lnksts RO 0x0 |
lnkspeed RO 0x0 |
lnkmod RO 0x0 |
||||||||||||
gmacgrp_sgmii_rgmii_smii_control_status Fields
| Bit | Name | Description | Access | Reset | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | lnksts |
This bit indicates whether the link is up (1'b1) or down (1'b0).
|
RO | 0x0 | ||||||||
| 2:1 | lnkspeed |
This bit indicates the current speed of the link. Bit 2 is reserved when the MAC is configured for the SMII PHY interface.
|
RO | 0x0 | ||||||||
| 0 | lnkmod |
This bit indicates the current mode of operation of the link
|
RO | 0x0 |