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PIC16LC554 Fiches technique(PDF) 48 Page - Microchip Technology

No de pièce PIC16LC554
Description  EPROM-Based 8-Bit CMOS Microcontroller
PDF  96 Pages
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Fabricant  MICROCHIP [Microchip Technology]
Site Internet  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16LC554 Fiches technique(HTML) 48 Page - Microchip Technology

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PIC16C55X(A)
DS40143B-page 48
Preliminary
© 1997 Microchip Technology Inc.
FIGURE 7-14: WATCHDOG TIMER BLOCK DIAGRAM
FIGURE 7-15: SUMMARY OF WATCHDOG TIMER REGISTERS
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
2007h
Config. bits
—
+
CP1
CP0
PWRTE
WDTE
FOSC1
FOSC0
81h
OPTION
RBPU
INTEDG
T0CS
T0SE
PSA
PS2
PS1
PS0
Legend: Shaded cells are not used by the Watchdog Timer.
— = Unimplemented location, read as ‘0’.
+ = Reserved for future use.
From TMR0 Clock Source
(Figure 6-6)
To TMR0 (Figure 6-6)
Postscaler
Watchdog
Timer
M
U
X
PSA
8 - to -1 MUX
PSA
WDT
Time-out
1
0
0
1
WDT
Enable Bit
PS<2:0>
•
•
Note: T0SE, T0CS, PSA, PS0-PS2 are bits in the OPTION register.
8
MUX



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