PIC16CE62X_13 Datasheet, PDF (62/114 Pages) Microchip Technology – OTP 8-Bit CMOS MCU with EEPROM Data Memory

PIC16CE62X
FIGURE 10-17: WATCHDOG TIMER BLOCK DIAGRAM
From TMR0 Clock Source
(Figure 7-6)
Watchdog
Timer
0
M
•
1U
X
WDT
Enable Bit
PSA
Postscaler
8
8 - to -1 MUX
PS<2:0>
•
0
1
MUX
To TMR0 (Figure 7-6)
PSA
WDT
Time-out
Note: T0SE, T0CS, PSA, PS<2:0> are bits in the OPTION register.
FIGURE 10-18: SUMMARY OF WATCHDOG TIMER REGISTERS
Address Name
Bit 7
Bit 6
Bit 5 Bit 4 Bit 3
2007h
Config. bits

BOREN CP1 CP0 PWRTE
81h
OPTION
RBPU INTEDG T0CS T0SE PSA
Legend: ^_ = Unimplemented location, read as “0”, + = Reserved for future use
Note: Shaded cells are not used by the Watchdog Timer.
Bit 2
WDTE
PS2
Bit 1
FOSC1
PS1
Bit 0
FOSC0
PS0
DS40182D-page 62
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