Visible to Intel only — GUID: bhc1410499802866
Ixiasoft
Changing Speed between 1G, 100M, and 10M SGMII
To enable SGMII, the software needs to write a different value to the PHY register address offset 0x1290. Set the port to 1000Base-X mode first before you select any SGMII modes.
Value | Description |
---|---|
0x01 | Enable SGMII mode and force speed to 10M |
0x03 | Enable SGMII mode and use SGMII auto negotiation |
0x05 | Enable SGMII mode and force speed to 100M |
0x09 | Enable SGMII mode and force speed to 1G |
Forcing Port 0 to SGMII 100M mode
- Set Port 0 to 1000Base-X: write_32 0x02_52C0 0x11
- Set Port 0 to SGMII 100M: write_32 0x02_5290 0x05