Non-volatile memory Configuration Main configuration Ethernet options
January 28, 2026 at 12:08 AMEthernet options
Address : 02C8 (bank 2, register C8)
Size : 1 byte
Default : 00
Description
Control various options related to the Ethernet interface.
Remark
If the product has no Ethernet interface, this register is ignored.
Content
| Bit | Role | Values |
|---|---|---|
| 7 | Disable Ethernet | 0 : Ethernet is enabled1 : Ethernet is disabled, all the other settings are ignored |
| 6 | Disable Auto-protection module | 0 : Auto-protection is enabled1 : Auto-protection is disabled |
| 5-3 | RFU | |
| 2-0 | Link speed | 0 : Auto-negotiation1 : 10MB Half duplex2 : 10MB Full duplex3 : 100MB Half duplex4 : 100MB Full duplex |
Remarks
Bits 2-0: Link speed
This setting is only effective if Auto-negotiation is disabled