Thank you very much for your help. I had same book (PDF) already and went thru some months back. At that time I was not in position to understand everything so now I went thru book. Now most of the things in this PDF looks basics (I don't want to call an expert now) to me. But now after reading the PDF my understanding improved lot.
Regarding tech support from Renesas, they always respond to questions and try to resolve the issue ASAP. Here are some of the issue details
Sorry for late response