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PIC12F508 Folha de dados(PDF) 53 Page - Microchip Technology

Nome de Peças PIC12F508
Descrição Electrónicos  8/14-Pin, 8-Bit Flash Microcontrollers
PDF  110 Pages
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Fabricante Electrônico  MICROCHIP [Microchip Technology]
Página de início  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC12F508 Folha de dados(HTML) 53 Page - Microchip Technology

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© 2009 Microchip Technology Inc.
DS41236E-page 53
PIC12F508/509/16F505
FIGURE 7-11:
WATCHDOG TIMER BLOCK DIAGRAM
TABLE 7-7:
SUMMARY OF REGISTERS ASSOCIATED WITH THE WATCHDOG TIMER
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
Power-On
Reset
Value on
All Other
Resets
N/A
OPTION(1) GPWU
GPPU
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111
1111 1111
N/A
OPTION(2) RBWU
RBPU
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111
1111 1111
Legend: Shaded boxes = Not used by Watchdog Timer. – = unimplemented, read as ‘0’, u = unchanged.
Note 1:
PIC12F508/509 only.
2:
PIC16F505 only.
(Figure 6-5)
Postscaler
Note 1:
T0CS, T0SE, PSA, PS<2:0> are bits in the OPTION register.
WDT Time-out
Watchdog
Time
From Timer0 Clock Source
WDT Enable
Configuration
Bit
PSA
Postscaler
8-to-1 MUX
PS<2:0>
(Figure 6-4)
To Timer0
0
1
M
U
X
1
0
PSA
MUX



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