8.2.147 GMAC Frame Elimination Redundancy Tag Register
| Name: | GMAC_FRER_REDTAG |
| Offset: | 0x8A4 |
| Reset: | 0x4000F1C1 |
| Property: | Read/Write |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| STRIP_R_TAG | SIX_BYTE_TAG | ||||||||
| Access | R/W | R/W | |||||||
| Reset | 0 | 1 |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| Access | |||||||||
| Reset |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| RED_TAG[15:8] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| RED_TAG[7:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | |
Bit 31 – STRIP_R_TAG Stripping Redundancy Tag Enable
| Value | Description |
|---|---|
| 0 | Disables the stripping function. When the statistics counters need to reflect the actual number of octets received, then the stripping functionality must be disabled. |
| 1 | Enables the stripping function, the receive octet counters reflect post deletion frame size so the frame elimination functionality is transparent to higher level management. |
Bit 30 – SIX_BYTE_TAG Six-byte Tag Enable
| Value | Description |
|---|---|
| 0 | Defines a four-byte tag as per 802.1CB standard revision 2.4 and earlier. |
| 1 | Enables the six-byte tag as per 802.1CB standard revision 2.4 and later. |
Bits 15:0 – RED_TAG[15:0] Redundancy Tag (R-TAG)
Defines the Ethertype value used to identify the redundancy tag (R-TAG).