PIC16F727T-I/SP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F727T-I/SP

28/40/44-Pin Flash Microcontrollers with nanoWatt XLP Technology

Microchip Technology 

PIC16F72X/PIC16LF72X

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

T1GSS = 11

TMR1GE

WDTE

From TMR0

Clock Source

Low-Power

WDT OSC

0

Divide by

512

1

PSA

TABLE 3-1: WDT STATUS

Conditions

WDTE = 0

CLRWDT Command

Exit Sleep + System Clock = T1OSC, EXTRC, INTOSC, EXTCLK

Exit Sleep + System Clock = XT, HS, LP

Postscaler

8

0

1

To T1G

WDTE

PS<2:0>

TO TMR0

WDT Reset

WDT

Cleared

Cleared until the end of OST

DS41341E-page 36

© 2009 Microchip Technology Inc.

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