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PIC16F676-E/ST Datasheet(PDF) 69 Page - Microchip Technology

Part # PIC16F676-E/ST
Description  14-Pin, Flash-Based 8-Bit CMOS Microcontrollers
PDF  132 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F676-E/ST Datasheet(HTML) 69 Page - Microchip Technology

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 2010 Microchip Technology Inc.
DS40039F-page 69
PIC16F630/676
FIGURE 9-12:
WATCHDOG TIMER BLOCK DIAGRAM
TABLE 9-9:
SUMMARY OF WATCHDOG TIMER REGISTERS
T0CKI
T0SE
pin
CLKOUT
TMR0
Watchdog
Timer
WDT
Time-out
PS0 - PS2
WDTE
Data Bus
Set Flag bit T0IF
on Overflow
T0CS
Note 1: T0SE, T0CS, PSA, PS0-PS2 are bits in the OPTION register.
0
1
0
1
0
1
SYNC 2
Cycles
8
8
8-bit
Prescaler
0
1
(= FOSC/4)
PSA
PSA
PSA
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOD
Value on all
other
Resets
81h
OPTION_REG RAPU INTEDG
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111 1111 1111
2007h
Config. bits
CP
BODEN MCLRE PWRTE WDTE F0SC2
F0SC1
F0SC0
uuuu uuuu uuuu uuuu
Legend: u = Unchanged, shaded cells are not used by the Watchdog Timer.



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