PIC18F23K20 Datasheet, PDF (301/420 Pages) Microchip Technology – 28/40/44-Pin Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC18F2XK20/4XK20
23.2.1 CONTROL REGISTER
Register 23-14 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 23-14: 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
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)
Note 1: This bit has no effect if the Configuration bit, WDTEN, is enabled.
TABLE 23-2: SUMMARY OF WATCHDOG TIMER REGISTERS
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
56
WDTCON
—
—
—
—
—
—
— SWDTEN 58
CONFIG2H
WDTPS3 WDTPS2 WDTPS1 WDTPS0 WDTEN 292
Legend: — = unimplemented, read as ‘0’. Shaded cells are not used by the Watchdog Timer.
© 2007 Microchip Technology Inc.
Advance Information
DS41303B-page 299