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PIC16F1946 Scheda tecnica(PDF) 107 Page - Microchip Technology

Il numero della parte PIC16F1946
Spiegazioni elettronici  64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology
PDF  478 Pages
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Produttore elettronici  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F1946 Scheda tecnica(HTML) 107 Page - Microchip Technology

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 2010-2012 Microchip Technology Inc.
DS41414D-page 107
PIC16(L)F1946/47
10.0 WATCHDOG TIMER (WDT)
The Watchdog Timer is a system timer that generates
a Reset if the firmware does not issue a CLRWDT
instruction within the time-out period. The Watchdog
Timer is typically used to recover the system from
unexpected events.
The WDT has the following features:
• Independent clock source
• Multiple operating modes
- WDT is always on
- WDT is off when in Sleep
- WDT is controlled by software
- WDT is always off
• Configurable time-out period is from 1 ms to 256
seconds (nominal)
• Multiple Reset conditions
• Operation during Sleep
FIGURE 10-1:
WATCHDOG TIMER BLOCK DIAGRAM
LFINTOSC
23-bit Programmable
Prescaler WDT
WDT Time-out
WDTPS<4:0>
SWDTEN
Sleep
WDTE<1:0> = 11
WDTE<1:0> = 01
WDTE<1:0> = 10



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