PIC18F4321 Datasheet, PDF (266/396 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC18F4321 FAMILY
REGISTER 23-14: WDTCON: WATCHDOG TIMER CONTROL REGISTER
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
bit 7
U-0
R/W-0
—
SWDTEN⁽¹⁾
bit 0
bit 7-1
bit 0
Unimplemented: Read as ‘0’
SWDTEN: Software Controlled Watchdog Timer Enable bit⁽¹⁾
1 = Watchdog Timer is on
0 = Watchdog Timer is off
Note 1: This bit has no effect if the Configuration bit, WDTEN, is enabled.
Legend:
R = Readable bit
U = Unimplemented bit, read as ‘0’
W = Writable bit
-n = Value at POR
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⁽¹⁾
—
RI
TO
PD
POR
BOR
50
WDTCON
—
—
—
—
—
—
—
SWDTEN
50
Legend: — = unimplemented, read as ‘0’. Shaded cells are not used by the Watchdog Timer.
Note 1: The SBOREN bit is only available when the BOREN1:BOREN0 Configuration bits = 01; otherwise, it is
disabled and reads as ‘0’. See Section 4.4 “Brown-out Reset (BOR)”.
DS39689E-page 264
Preliminary
© 2007 Microchip Technology Inc.