Network Configuration Register
| SPD | Speed |
| FD | Full Duplex |
| JFRAME | Jumbo Frames |
| CAF | Copy All Frames |
| NBC | No Broadcast |
| MTI | Multicast Hash Enable |
| UNI | Unicast Hash Enable |
| BIG | Receive 1536 bytes frames |
| CLK | MDC clock divider |
| RTY | Retry test |
| PAE | Pause Enable |
| RBOF | Receive Buffer Offset |
| RLCE | Receive Length field Checking Enable |
| DRFCS | Discard Receive FCS |
| EFRHD | |
| IRXFCS | Ignore RX FCS |