PIC16F627-04 Microchip Technology, PIC16F627-04 Datasheet - Page 110

• Manufacturer Part Number: PIC16F627-04
• Description: FLASH-Based 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

PIC16F62X
FIGURE 14-18: WATCHDOG TIMER BLOCK DIAGRAM
TABLE 14-9:
DS40300B-page 110
Address
Legend: Shaded cells are not used by the Watchdog Timer.
Note:
2007h
Note: T0SE, T0CS, PSA, PS0-PS2 are bits in the OPTION register.
81h
_
+ = Reserved for future use
= Unimplemented location, read as “0”
Config. bits
OPTION
Name
SUMMARY OF WATCHDOG TIMER REGISTERS
Bit 7
RBPU
LVP
Enable Bit
Watchdog
Timer
WDT
INTEDG
BOREN
Bit 6
From TMR0 Clock Source
(Figure 6-6)
MCLRE
Bit 5
T0CS
•
FOSC2
Bit 4
T0SE
Preliminary
0
1
PSA
M
U
X
PWRTE
Bit 3
PSA
WDTE
Bit 2
PS2
0
Time-out
8 - to -1 MUX
MUX
WDT
Postscaler
FOSC1
Bit 1
PS1
•
1
8
FOSC0
Bit 0
PS0
PSA
To TMR0 (Figure 6-6)
1999 Microchip Technology Inc.
PS<2:0>
uuuu uuuu
1111 1111
Value on
Reset
POR
uuuu uuuu
1111 1111
Value on
all other
Resets