PIC16F193X Datasheet, PDF (122/418 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology

PIC16F193X/LF193X
FIGURE 8-9:
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 8-2: SUMMARY OF REGISTERS ASSOCIATED WITH CLOCK SOURCES
Name
Bit 7
CONFIG1⁽²⁾ CPD
OSCCON SPLLEN
Bit 6
CP
IRCF3
Bit 5
Bit 4
MCLRE PWRTE
IRCF2 IRCF1
Bit 3
WDTE
IRCF0
Bit 2
FOSC2
—
Bit 1
FOSC1
SCS1
Bit 0
FOSC0
SCS0
Register
on Page
126
108
OSCSTAT
T1OSCR PLLR
OSTS HFIOFR HFIOFL MFIOFR LFIOFR HFIOFS
113
OSCTUNE
—
—
TUN5
TUN4
TUN3
TUN2
TUN1
TUN0
114
PIE2
OSFIE
C2IE
C1IE
EEIE
BCLIE
LCDIE
—
CCP2IE
75
PIR2
OSFIF
C2IF
C1IF
EEIF
BCLIF
LCDIF
—
CCP2IF
78
T1CON
TMR1CS1 TMR1CS0 T1CKPS1 T1CKPS0 T1OSCEN T1SYNC
—
TMR1ON
169
Legend:
Note 1:
2:
x = unknown, u = unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by
oscillators.
Other (non Power-up) Resets include MCLR Reset and Watchdog Timer Reset during normal operation.
See Configuration Word Register 1 (Register 10-1) for operation of all register bits.
DS41364A-page 120
Preliminary
© 2008 Microchip Technology Inc.