PIC18LF24K Datasheet, PDF (27/594 Pages) –

PIC18(L)F26/45/46K40
REGISTER 3-6:
U-1
—
bit 7
CONFIGURATION WORD 3H (30 0005h): WINDOWED WATCHDOG TIMER
U-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
—
WDTCCS<2:0>
WDTCWS<2:0>
bit 0
Legend:
R = Readable bit
-n = Value for blank device
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘1’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-6
bit 5-3
bit 2-0
Unimplemented: Read as ‘1’
WDTCCS<2:0>: WDT Input Clock Selector bits
If WDTE<1:0> fuses = 2’b00
This bit is ignored.
Otherwise:
111 = Software Control
110 = Reserved (Default to LFINTOSC)
.
.
.
010 = Reserved (Default to LFINTOSC)
001 = WDT reference clock is the 31.25 kHz HFINTOSC (MFINTOSC)
000 = WDT reference clock is the 31.0 kHz LFINTOSC (default value)
WDTCWS<2:0>: WDT Window Select bits
WDTCWS
111
110
101
100
011
010
001
000
Value
111
111
101
100
011
010
001
000
WINDOW at POR
Window delay
Percent of time
n/a
n/a
25
37.5
50
62.5
75
87.5
Window opening
Percent of time
100
100
75
62.5
50
37.5
25
12.5
Software
control of
WINDOW
Yes
No
Keyed
access
required?
No
Yes
 2016 Microchip Technology Inc.
Preliminary
DS40001816C-page 27