PIC16F676 Microchip Technology Inc., PIC16F676 Datasheet - Page 69

• Manufacturer Part Number: PIC16F676
• Description: 14-pin, Flash-based 8-bit Cmos Microcontroller
• Manufacturer: Microchip Technology Inc.

FIGURE 9-12:
TABLE 9-9:
© 2007 Microchip Technology Inc.
81h
2007h
Legend: u = Unchanged, shaded cells are not used by the Watchdog Timer.
T0CKI
Address
pin
(= F
CLKOUT
Note 1: T0SE, T0CS, PSA, PS0-PS2 are bits in the Option register.
OSC
T0SE
OPTION_REG RAPU INTEDG
Config. bits
/4)
Name
SUMMARY OF WATCHDOG TIMER REGISTERS
Watchdog
WDTE
Timer
WATCHDOG TIMER BLOCK DIAGRAM
T0CS
Bit 7
CP
0
1
BODEN MCLRE PWRTE WDTE
Bit 6
PSA
0
1
T0CS
Bit 5
Prescaler
8-bit
T0SE
Bit 4
8
PS0 - PS2
Bit 3
PSA
F0SC2
Bit 2
PS2
PSA
PSA
F0SC1
1
0
1
0
Bit 1
PS1
PIC16F630/676
SYNC 2
Cycles
Time-out
F0SC0
WDT
Bit 0
PS0
1111 1111 1111 1111
uuuu uuuu uuuu uuuu
POR, BOD
Value on
Data Bus
Set Flag bit T0IF
8
DS40039E-page 67
TMR0
on Overflow
Value on all
RESETS
other