PIC18F23K22 Datasheet, PDF (361/492 Pages) Microchip Technology – 28/40/44-Pin, Low-Power, High-Performance Microcontrollers with nanoWatt XLP Technology

PIC18(L)F2X/4XK22
24.2.1 CONTROL REGISTER
Register 24-14 shows the WDTCON register. This is a
readable and writable register which contains a control
bit that allows software to override the WDT enable
Configuration bit, but only if the Configuration bit has
disabled the WDT.
REGISTER 24-14: WDTCON: WATCHDOG TIMER CONTROL REGISTER
U-0
—
bit 7
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
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 7-1
bit 0
Note 1:
Unimplemented: Read as ‘0’
SWDTEN: Software Enable or Disable the Watchdog Timer bit⁽¹⁾
1 = WDT is turned on
0 = WDT is turned off (Reset value)
This bit has no effect if the Configuration bit, WDTEN, is enabled.
TABLE 24-3: REGISTERS ASSOCIATED WITH WATCHDOG TIMER
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reset
Values
on Page
RCON
IPEN SBOREN —
RI
TO
PD
POR
BOR
60
WDTCON
—
—
—
—
—
—
— SWDTEN 361
Legend: — = unimplemented, read as ‘0’. Shaded bits are not used by the Watchdog Timer.
TABLE 24-4: CONFIGURATION REGISTERS ASSOCIATED WITH WATCHDOG TIMER
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CONFIG2H
—
—
WDPS<3:0>
WDTEN<1:0>
Legend: — = unimplemented, read as ‘0’. Shaded bits are not used by the Watchdog Timer.
Reset
Values
on Page
353
 2010 Microchip Technology Inc.
Preliminary
DS41412B-page 361