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PIC16F722-E/ML Datasheet(PDF) 36 Page - Microchip Technology

Part # PIC16F722-E/ML
Description  28/40/44-Pin Flash Microcontrollers with nanoWatt XLP Technology
PDF  302 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F722-E/ML Datasheet(HTML) 36 Page - Microchip Technology

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PIC16F72X/PIC16LF72X
DS41341E-page 36
© 2009 Microchip Technology Inc.
3.4.2
WDT CONTROL
The WDTE bit is located in the Configuration Word
Register 1. When set, the WDT runs continuously.
The PSA and PS<2:0> bits of the OPTION register
control the WDT period. See Section 11.0 “Timer0
Module” for more information.
FIGURE 3-1:
WATCHDOG TIMER BLOCK DIAGRAM
From TMR0
Postscaler
8
PS<2:0>
PSA
TO TMR0
1
1
0
0
Clock Source
To T1G
Divide by
512
WDTE
TMR1GE
T1GSS = 11
WDTE
WDT Reset
Low-Power
WDT OSC
TABLE 3-1:
WDT STATUS
Conditions
WDT
WDTE = 0
Cleared
CLRWDT
Command
Exit Sleep + System Clock = T1OSC, EXTRC, INTOSC, EXTCLK
Exit Sleep + System Clock = XT, HS, LP
Cleared until the end of OST



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