8.2.148 GMAC Frame Elimination Control A Register x
| Name: | GMAC_FRER_CTRL_Ax |
| Offset: | 0x08C0 + (x-1)*0x10 [x=1..4] |
| Reset: | 0x00000000 |
| Property: | Read/Write |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| EN_ELIMINATION | EN_VECTOR_REC_ALG | EN_SEQRECRST_TIMER | USE_R_TAG | ||||||
| Access | R/W | R/W | R/W | R/W | |||||
| Reset | 0 | 0 | 0 | 0 |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| OFFSET_VALUE[8] | |||||||||
| Access | R/W | ||||||||
| Reset | 0 |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| OFFSET_VALUE[7:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| MEMBER_STREAM_2[3:0] | MEMBER_STREAM_1[3:0] | ||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Bit 31 – EN_ELIMINATION 802.1CB Elimination of Received Frames Enable
| Value | Description |
|---|---|
| 0 | Disables the elimination of received frames. |
| 1 | Enables the elimination of received frames. |
Bit 30 – EN_VECTOR_REC_ALG 802.1CB Vector Recovery Algorithm Enable
| Value | Description |
|---|---|
| 0 | Enables the match recovery algorithm. |
| 1 | Enables the vector recovery algorithm. |
Bit 29 – EN_SEQRECRST_TIMER 802.1CB Sequence Recovery Reset Timer Enable
| Value | Description |
|---|---|
| 0 | Disables the sequence recovery reset timer. |
| 1 | Enables the sequence recovery reset timer. |
Bit 28 – USE_R_TAG Redundancy Tag Enable
| Value | Description |
|---|---|
| 0 | Identifies bottom of sequence number with OFFSET_VALUE. |
| 1 | Identifies sequence number with redundancy tag. |
Bits 16:8 – OFFSET_VALUE[8:0] Offset in Bytes from Start Packet Delimiter to MSB for 802.1CB Sequence Number
Defines the offset value in bytes from the start packet delimiter to the most significant byte of the 802.1CB sequence number. 9-bit width allows a TCP sequence number to be used with IPv6. This value must only be changed when EN_ELIMINATION=0.
Bits 7:4 – MEMBER_STREAM_2[3:0] Pointer to Screener Type 2 Register
Used for member stream identification. The member stream 1 and 2 values can be programmed to identical values.
Bits 3:0 – MEMBER_STREAM_1[3:0] Pointer to Screener Type 2 Register
Used for member stream identification. The member stream 1 and 2 values can be programmed to identical values.