126.96.36.199. SCDC_FRL_STATUS (0x2E)
|SCDC FRL FFE level||11:8||RO||
Indicates the maximum TxFFE level supported by the source at current FRL rate.
These bits correspond to the SCDC sink configuration register 0x31 bits 4-7
|SCDC FRL rate||7:4||RO||
Indicates the FRL rate (link rate and number of lanes)that the RX core is running.
0: Disable FRL
1: Fixed rate link at 3 Gbps per lane on 3 lanes
2: Fixed rate link at 6 Gbps per lane on 3 lanes
3: Fixed rate link at 6 Gbps per lane on 4 lanes
4: Fixed rate link at 8 Gbps per lane on 4 lanes
5: Fixed rate link at 10 Gbps per lane on 4 lanes
6: Fixed rate link at 12 Gbps
|SCDC FRL locked||3:0||RO||
Each bit indicates the corresponding FRL lane achieving lock.
For 3-lane mode, the RX core asserts the lock bit when it detects SR or SSB followed by 680 FRL Character Periods, repeating for 3 times. Bit 3 is never asserted at 3-lane mode.
For 4-lane mode, the RX core asserts the lock bit when it detects SR or SSB followed by 510 Character Periods.
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