Das ist was ich in der entsprechenden Header Datei gefunden habe:
/* Register FOSC (0x557f6) */
extern __attribute__((space(prog))) _prog_ uint16_t _FOSC;
#define _FOSC(x)
__attribute__((address(0x557f6),deprecated_definition("consider
migrating to #pragma config"),section("__FOSC.sec"),space(prog)))
_prog_ uint16_t _FOSC = (x);
/*
** Only one invocation of FOSC should appear in a project,
** at the top of a C source file (outside of any function).
**
** The following constants can be used to set FOSC.
** Multiple options may be combined, as shown:
**
** _FOSC( OPT1_ON & OPT2_OFF & OPT3_PLL )
**
** Primary Oscillator Mode Select bits:
** POSCMD_EC EC (External Clock) Mode
** POSCMD_XT XT Crystal Oscillator Mode
** POSCMD_HS HS Crystal Oscillator Mode
** POSCMD_NONE Primary Oscillator disabled
**
** OSC2 Pin Function bit:
** OSCIOFNC_ON OSC2 is general purpose digital I/O pin
** OSCIOFNC_OFF OSC2 is clock output
**
** Peripheral pin select configuration:
** IOL1WAY_OFF Allow multiple reconfigurations
** IOL1WAY_ON Allow only one reconfiguration
**
** Clock Switching Mode bits:
** FCKSM_CSECME Both Clock switching and Fail-safe Clock
Monitor are enabled
** FCKSM_CSECMD Clock switching is enabled,Fail-safe Clock
Monitor is disabled
** FCKSM_CSDCMD Both Clock switching and Fail-safe Clock
Monitor are disabled
**
*/
#define POSCMD_EC 0xFFFC
#define POSCMD_XT 0xFFFD
#define POSCMD_HS 0xFFFE
#define POSCMD_NONE 0xFFFF
#define OSCIOFNC_ON 0xFFFB
#define OSCIOFNC_OFF 0xFFFF
#define IOL1WAY_OFF 0xFFDF
#define IOL1WAY_ON 0xFFFF
#define FCKSM_CSECME 0xFF3F
#define FCKSM_CSECMD 0xFF7F
#define FCKSM_CSDCMD 0xFFBF
/* Register FOSCSEL (0x557f8) */
extern __attribute__((space(prog))) _prog_ uint16_t _FOSCSEL;
#define _FOSCSEL(x)
__attribute__((address(0x557f8),deprecated_definition("consider
migrating to #pragma config"),section("__FOSCSEL.sec"),space(prog)))
_prog_ uint16_t _FOSCSEL = (x);
/*
** Only one invocation of FOSCSEL should appear in a project,
** at the top of a C source file (outside of any function).
**
** The following constants can be used to set FOSCSEL.
** Multiple options may be combined, as shown:
**
** _FOSCSEL( OPT1_ON & OPT2_OFF & OPT3_PLL )
**
** Oscillator Source Selection:
** FNOSC_FRC Internal Fast RC (FRC)
** FNOSC_FRCPLL Fast RC Oscillator with divide-by-N with PLL
module (FRCPLL)
** FNOSC_PRI Primary Oscillator (XT, HS, EC)
** FNOSC_PRIPLL Primary Oscillator with PLL module (XT +
PLL, HS + PLL, EC + PLL)
** FNOSC_SOSC Secondary Oscillator (SOSC)
** FNOSC_LPRC Low-Power RC Oscillator (LPRC)
** FNOSC_FRCDIVN Internal Fast RC (FRC) Oscillator with
postscaler
**
** PWM Lock Enable bit:
** PWMLOCK_OFF PWM registers may be written without key
sequence
** PWMLOCK_ON Certain PWM registers may only be written
after key sequence
**
** Two-speed Oscillator Start-up Enable bit:
** IESO_OFF Start up with user-selected oscillator
source
** IESO_ON Start up device with FRC, then switch to
user-selected oscillator source
**
*/
#define FNOSC_FRC 0xFFF8
#define FNOSC_FRCPLL 0xFFF9
#define FNOSC_PRI 0xFFFA
#define FNOSC_PRIPLL 0xFFFB
#define FNOSC_SOSC 0xFFFC
#define FNOSC_LPRC 0xFFFD
#define FNOSC_FRCDIVN 0xFFFF
#define PWMLOCK_OFF 0xFFBF
#define PWMLOCK_ON 0xFFFF
#define IESO_OFF 0xFF7F
#define IESO_ON 0xFFFF