In the Aurora 8B10B v8.3 core, there is a mismatch with the information provided in the user guide about RESET polarity and the core implementation. This answer record helps with the details of this mismatch and the recommendation to be followed.
The Aurora 8B10B v8.3 User Guide mentions the RESET polarity to be active-LOW, but in the core's example design it is implemented as active-HIGH. Also, at the core interface level, the RESET polarity is active-HIGH.
So, please ensure the polarity of the RESET input to the core interface or example design is active-HIGH.
02/03/2014 - Initial release