8.2.149 GMAC Frame Elimination Control B Register x
| Name: | GMAC_FRER_CTRL_Bx |
| Offset: | 0x08C4 + (x-1)*0x10 [x=1..4] |
| Reset: | 0x00000000 |
| Property: | Read/Write |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| Access | |||||||||
| Reset |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| Access | |||||||||
| Reset |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| SEQ_NUM_LENGTH[4:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | ||||
| Reset | 0 | 0 | 0 | 0 | 0 | ||||
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| SEQ_REC_WINDOW[5:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | |||
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | |||
Bits 12:8 – SEQ_NUM_LENGTH[4:0] Number of Significant Bits of the 802.1CB Sequence Number
Defines the number of LSBs to consider in the 802.1CB sequence number.
The vector recovery algorithm does not work for values lower than 4. The value 0 and values greater than 16 are equivalent to 16.
Bits 5:0 – SEQ_REC_WINDOW[5:0] Vector Recovery Window
Defines the window size used by the vector recovery algorithm to determine whether to reject a packet. A value of zero means the entire history vector is used.