Network Configuration Register
| SPD | Speed |
| FD | Full Duplex |
| DNVLAN | Discard Non-VLAN FRAMES |
| JFRAME | Jumbo Frame Size |
| CAF | Copy All Frames |
| NBC | No Broadcast |
| MTIHEN | Multicast Hash Enable |
| UNIHEN | Unicast Hash Enable |
| MAXFS | 1536 Maximum Frame Size |
| RTY | Retry Test |
| PEN | Pause Enable |
| RXBUFO | Receive Buffer Offset |
| LFERD | Length Field Error Frame Discard |
| RFCS | Remove FCS |
| CLK | MDC CLock Division |
| DBW | Data Bus Width |
| DCPF | Disable Copy of Pause Frames |
| RXCOEN | Receive Checksum Offload Enable |
| EFRHD | Enable Frames Received in Half Duplex |
| IRXFCS | Ignore RX FCS |
| IPGSEN | IP Stretch Enable |
| RXBP | Receive Bad Preamble |
| IRXER | Ignore IPG GRXER |