> Is there any explanation of all those configuration bits?

/Program Files/Microchip/MPASM Suite

If you look in the .inc file for your PIC you will find entries like these

_PWRTE_ON        EQU  H'FFDF'    ; PWRT enabled
_PWRTE_OFF       EQU  H'FFFF'    ; PWRT disabled

_MCLRE_OFF       EQU  H'FFBF'    ; MCLR/VPP pin function is digital input
_MCLRE_ON        EQU  H'FFFF'    ; MCLR/VPP pin function is MCLR

_CP_ON           EQU  H'FF7F'    ; Program memory code protection is enable=
d
_CP_OFF          EQU  H'FFFF'    ; Program memory code protection is=20
disabled

_CPD_ON          EQU  H'FEFF'    ; Data memory code protection is enabled
_CPD_OFF         EQU  H'FFFF'    ; Data memory code protection is disabled

CONFIG1, CONFIG2 for example will also be in the datasheet

Joe=20

--=20
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