so now it imply that you use SERIN2/SEROUT2 or else. chances are that you'll never find anything in the datasheet since it's a PBP statement. You'll find the result in the APPENDIX A at the end of your PBP manual... there you'll find the right setting for SERIN2/SEROUT2 wich is.....16468

For SERIN/SEROUT you'll use 6

You can't tell to HSERIN/HSEROUT to drive inverted since it use the internal PIC hardware.