| Bits | Default | Type | Signal |
|---|---|---|---|
| 0 | 0 | RW | ctl_umii_an_bypass |
| 4:1 | 000 | RW | ctl_umii_an_link_timer_config |
| 5 | 0 | RW | ctl_umii_an_mr_an_enable |
| 6 | 0 | RW | ctl_umii_an_mr_main_reset |
| 7 | 0 | RW | ctl_umii_an_mr_restart_an |
| 10:8 | 011 | RW |
ctl_usxgmii_rate
|
| 15:11 | 0 | RO | Reserved for future use |
| 16 | 1 | RW | USXGMII |
| 22:17 | 0 | RW | Reserved for future use |
| 23 | 0 | RW | EEE clock stop capability; Not supported |
| 24 | 0 | RW | EEE capability; Not supported. |
| 27:25 | 011 | RW | Speed; refer to table f N-base-T_usxgmii rev1.4 |
| 28 | 1 | RW | Duplex Mode. 1 = Full Duplex, 0=Half Duplex |
| 29 | 0 | RW | Reserved for future use |
| 30 | 0 | RO | AN acknowledge |
| 31 | 0 | RW | Link Status |