Description
Serial Loopback is not supported in Arria® V or Cyclone® V devices with GX transceivers.
The Triple Speed Ethernet (TSE) user guide states that "The serial loopback option is not supported in Stratix® V and Cyclone® IV devices with GX transceiver."
Resolution
Details regarding Arria® V and Cyclone® V devices haven't yet been included in the TSE user guide.
This paragraph will be updated to state that Arria® V and Cyclone® V devices do not support PHY Loopback, either.