Due to a problem in the Quartus® II software version 13.0 and later, you may see this internal error during the Assembler when compiling designs targeting Stratix® V, Arria® V, or Cyclone® V devices. This error occurs if two HSSI IP are placed in channel 0 and channel 1 of the same HSSI triplet, while their PPM are configured differently.
To work around this problem in the Quartus II software version 13.0, download and install patch 0.dp2 from the related solution below.
This problem is fixed beginning with the Quartus II software version 13.0 SP1.
This issue is schedule to be fixed in a future release of the Quartus II software.