PIC18F2331_07 Datasheet, PDF (283/400 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
REGISTER 22-15: WDTCON: WATCHDOG TIMER CONTROL REGISTER
R-0
U-0
U-0
U-0
U-0
U-0
WDTW
—
—
—
—
—
bit 7
U-0
R/W-0
—
SWDTEN⁽¹⁾
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
bit 6-1
bit 0
WDTW: Watchdog Timer Window bit
1 = WDT count is in fourth quadrant
0 = WDT count is not in fourth quadrant
Unimplemented: Read as ‘0’
SWDTEN: Software Enable/Disable for Watchdog Timer bit⁽¹⁾
1 = WDT is turned on
0 = WDT is turned off
Note 1: If WDTEN Configuration bit = 1, then WDT is always enabled, irrespective of this control bit. If WDTEN
Configuration bit = 0, then it is possible to turn WDT on/off with this control bit.
TABLE 22-2: SUMMARY OF WATCHDOG TIMER REGISTERS
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
CONFIG2H
—
—
WINEN WDTPS3
RCON
IPEN
—
—
RI
WDTCON
WDTW
—
—
—
Legend: Shaded cells are not used by the Watchdog Timer.
WDTPS2
TO
—
Bit 2
WDTPS2
PD
—
Bit 1
WDTPS0
POR
—
Bit 0
WDTEN
BOR
SWDTEN
© 2007 Microchip Technology Inc.
Preliminary
DS39616C-page 281