This forum is an excellent vehicle for communicating between users with issues, questions, suggestions, etc.
It can even be a good place for simple examples, e.g. how do I write an 8-bit counter.
The resource I suggested above was the best place I know to get started with your question. The PLB specification itself is over 100 pages. This forum is not really a substitiute for a detailed reading of the applicable specification and design of your specific architectural requirements.