CAUI-4 variations of the LL 100GbE IP core do not support serial PMA loopback
mode. If you set any bits in the PHY_PMA_SLOOP register at offset
0x313 in your CAUI-4 variation, the change has no effect.
Type: Answers
Type: Errata
Area: Intellectual Property
CAUI-4 Variations of the LL 100GbE IP Core Do Not Support Serial PMA Loopback Mode
Description
Workaround/Fix
This issue has no workaround
This issue will be fixed in a future version of the Low Latency 40- and 100-Gbps Ethernet MAC and PHY IP core.