Microchip Technology MA160014 Data Sheet
2010-2012 Microchip Technology Inc.
DS41412E-page 45
PIC18(L)F2X/4XK22
FIGURE 2-11:
FSCM TIMING DIAGRAM
OSCFIF
System
Clock
Output
Sample Clock
Failure
Detected
Oscillator
Failure
Failure
Note:
The system clock is normally at a much higher frequency than the sample clock. The relative frequencies in
this example have been chosen for clarity.
this example have been chosen for clarity.
(Q)
Test
Test
Test
Clock Monitor Output
TABLE 2-4:
REGISTERS ASSOCIATED WITH CLOCK SOURCES
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register
on Page
INTCON
GIE/GIEH PEIE/GIEL
TMR0IE
INT0IE
RBIE
TMR0IF
INT0IF
RBIF
IPR2
OSCFIP
C1IP
C2IP
EEIP
BCL1IP
HLVDIP
TMR3IP CCP2IP
OSCCON
IDLEN
IRCF<2:0>
OSTS
HFIOFS
SCS<1:0>
OSCCON2
PLLRDY
SOSCRUN
—
MFIOSEL SOSCGO
PRISD
MFIOFS LFIOFS
OSCTUNE
INTSRC
PLLEN
TUN<5:0>
PIE2
OSCFIE
C1IE
C2IE
EEIE
BCL1IE
HLVDIE
TMR3IE CCP2IE
PIR2
OSCFIF
C1IF
C2IF
EEIF
BCL1IF
HLVDIF
TMR3IF CCP2IF
Legend: — = unimplemented locations, read as ‘0’. Shaded bits are not used by clock sources.
TABLE 2-5:
CONFIGURATION REGISTERS ASSOCIATED WITH CLOCK SOURCES
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register
on Page
CONFIG1H
IESO
FCMEN
PRICLKEN PLLCFG
FOSC<3:0>
CONFIG2L
—
—
—
BORV<1:0>
BOREN<1:0>
PWRTEN
CONFIG3H
MCLRE
—
P2BMX
T3CMX
HFOFST CCP3MX
PBADEN
CCP2MX
Legend: — = unimplemented locations, read as ‘0’. Shaded bits are not used for clock sources.