PIC18F6620 Microchip, PIC18F6620 Datasheet - Page 253

• Manufacturer Part Number: PIC18F6620
• Description: Microcontroller
• Manufacturer: Microchip

23.2.2
The WDT has a postscaler that can extend the WDT
Reset period. The postscaler is selected at the time of
the device programming by the value written to the
CONFIG2H Configuration register.
FIGURE 23-1:
TABLE 23-2:
 2004 Microchip Technology Inc.
CONFIG2H
RCON
WDTCON
Legend: Shaded cells are not used by the Watchdog Timer.
Name
WDT POSTSCALER
Note:
Configuration bit
WDTEN
PIC18F6520/8520/6620/8620/6720/8720
SUMMARY OF WATCHDOG TIMER REGISTERS
IPEN
Bit 7
—
—
WDPS2:WDPS0 are bits in register CONFIG2H.
WATCHDOG TIMER BLOCK DIAGRAM
WDT Timer
Bit 6
—
—
—
SWDTEN bit
Bit 5
—
—
—
Bit 4
—
RI
—
8-to-1 MUX
WDTPS2
Postscaler
Time-out
Bit 3
WDT
TO
—
8
WDTPS2
Bit 2
PD
—
WDTPS2:WDTPS0
WDTPS0
Bit 1
POR
—
DS39609B-page 251
SWDTEN
WDTEN
Bit 0
BOR