PIC18F23K22 Datasheet, PDF (45/492 Pages) Microchip Technology – 28/40/44-Pin, Low-Power, High-Performance Microcontrollers with nanoWatt XLP Technology

PIC18(L)F2X/4XK22
FIGURE 2-11:
FSCM TIMING DIAGRAM
Sample Clock
System
Clock
Output
Clock Monitor Output
(Q)
OSCFIF
Oscillator
Failure
Failure
Detected
Note:
Test
Test
Test
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.
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
115
IPR2
OSCFIP C1IP
C2IP
EEIP BCL1IP HLVDIP TMR3IP CCP2IP 128
OSCCON IDLEN
IRCF<2:0>
OSTS HFIOFS
SCS<1:0>
32
OSCCON2 PLLRDY SOSCRUN
—
MFIOSEL SOSCGO PRISD MFIOFS LFIOFS 33
OSCTUNE INTSRC PLLEN
TUN<5:0>
37
PIE2
OSCFIE C1IE
C2IE
EEIE BCL1IE HLVDIE TMR3IE CCP2IE 124
PIR2
OSCFIF C1IF
C2IF
EEIF BCL1IF HLVDIF TMR3IF CCP2IF 119
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>
351
CONFIG2L
—
—
—
BORV<1:0>
BOREN<1:0>
PWRTEN ₃₅₂
CONFIG3H MCLRE —
P2BMX T3CMX HFOFST CCP3MX PBADEN CCP2MX ₃₅₄
Legend: — = unimplemented locations, read as ‘0’. Shaded bits are not used for Clock Sources.
 2010 Microchip Technology Inc.
Preliminary
DS41412B-page 45