I was going through the High-speed Reed-Solomon IP Core User Guide, there I was found Parallelism (P) concept, can u explain the Parallelism concept and related configuration for custom RS FEC i.e RS(198,194) of encoder and the decoder .
As I understand it, you have some inquiries related to the general concept on some of the feature of the HSRS IP. For your information, the parallelism is referring the number of parallel inputs and outputs. The higher the number set, meaning there will be more data going into the IP at one time.
As for the "related configuration" inquiry, sorry as I am not very clear about it, would you mind to further elaborate on it? Sorry for the inconvenience.