PIC18F66J90 configuration bits

The configuration words set the oscillator, the watchdog, the power-up timer, brown-out reset, low-voltage programming and code protection. Pick a setting and the word below updates; the starting values are the defaults in Microchip's device file. In XC8 each setting is a #pragma config NAME = SETTING line.

CONFIG1L · 0xFFF8

0xE1default 0xE1

DEBUGBackground Debugger Enable bitXINSTExtended Instruction Set Enable bitSTVRENStack Overflow ResetWDTENWatchdog Timer

CONFIG1H · 0xFFF9

0xF4default 0xF4

RESERVEDRESERVEDSIGNConfig Word Signature BitCP0Code Protect

CONFIG2L · 0xFFFA

0xDFdefault 0xDF

IESOTwo-Speed Start-up (Internal/External Oscillator Switchover) Control bitFCMENFail-Safe Clock Monitor Enable bitLPT1OSCLow-Power Timer1 Oscillator Enable bitT1DIGSecondary Clock Source T1OSCEN EnforcementOSCOscillator Selection bits

CONFIG2H · 0xFFFB

0xFFdefault 0xFF

RESERVEDRESERVEDWDTPSWatchdog Timer Postscaler Select bits

CONFIG3L · 0xFFFC

0x02default 0x02

RTCSOSCRTCC Reference Clock Select bit

CONFIG3H · 0xFFFD

0xF1default 0xF1

RESERVEDRESERVEDCCP2MXCCP2 MUX