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PIC18F258-E/SOSQTP Datasheet(PDF) 275 Page - Microchip Technology

Part # PIC18F258-E/SOSQTP
Description  28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module
PDF  402 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F258-E/SOSQTP Datasheet(HTML) 275 Page - Microchip Technology

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© 2006 Microchip Technology Inc.
DS41159E-page 273
PIC18FXX8
24.2.2
WDT POSTSCALER
The WDT has a postscaler that can extend the WDT
Reset period. The postscaler is selected at the time of
device programming by the value written to the
CONFIG2H Configuration register.
FIGURE 24-1:
WATCHDOG TIMER BLOCK DIAGRAM
TABLE 24-2:
SUMMARY OF WATCHDOG TIMER REGISTERS
Postscaler
WDT Timer
WDTEN
8-to-1 MUX
WDTPS2:WDTPS0
WDT
Time-out
8
SWDTEN bit
Configuration bit
Note:
WDTPS2:WDTPS0 are bits in register CONFIG2H.
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CONFIG2H
—
—
—
—
WDTPS2
WDTPS1
WDTPS0
WDTEN
RCON
IPEN
—
—
RI
TO
PD
POR
BOR
WDTCON
—
—
—
—
—
—
—SWDTEN
Legend: Shaded cells are not used by the Watchdog Timer.



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