PIC12F609-I/PQTP MICROCHIP [Microchip Technology], PIC12F609-I/PQTP Datasheet - Page 109
PIC12F609-I/PQTP
Manufacturer Part Number
PIC12F609-I/PQTP
Description
8-Pin Flash-Based, 8-Bit CMOS Microcontrollers
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC12F609-IPQTP.pdf
(168 pages)
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11.6.2
It should also be taken in account that under worst-
case conditions (i.e., V
Max. WDT prescaler) it may take several seconds
before a WDT time out occurs.
FIGURE 11-2:
TABLE 11-8:
TABLE 11-9:
© 2006 Microchip Technology Inc.
OPTION_REG
CONFIG
Legend:
Note 1:
WDTE = 0
CLRWDT Command
Oscillator Fail Detected
Exit Sleep + System Clock = T1OSC, EXTRC, INTRC, EXTCLK
Exit Sleep + System Clock = XT, HS, LP
T0CKI
pin
(= F
Name
CLKOUT
Note 1: T0SE, T0CS, PSA, PS<2:0> are bits in the OPTION register.
OSC
T0SE
Shaded cells are not used by the Watchdog Timer.
See Register 11-1 for operation of all Configuration Word register bits.
/4)
WDT PROGRAMMING
CONSIDERATIONS
IOSCFS
GPPU
Bit 7
WDT STATUS
SUMMARY OF REGISTERS ASSOCIATED WITH WATCHDOG TIMER
Watchdog
WDTE
Timer
WATCHDOG TIMER BLOCK DIAGRAM
DD
INTEDG
T0CS
= Min., Temperature = Max.,
Bit 6
CP
0
1
MCLRE
T0CS
Conditions
Bit 5
PSA
0
1
PIC12F609/615/12HV609/615
PWRTE
T0SE
Bit 4
Prescaler
8-bit
Preliminary
WDTE
Bit 3
PSA
8
PS<2:0>
FOSC2
Bit 2
PS2
3
FOSC1
Bit 1
PS1
PSA
PSA
1
0
1
0
FOSC0
Bit 0
PS0
SYNC 2
Time-Out
Cycles
WDT
Cleared until the end of OST
1111 1111
POR, BOR
Value on
—
Cleared
WDT
DS41302A-page 107
Data Bus
Set Flag bit T0IF
8
TMR0
on Overflow
1111 1111
Value on
all other
Resets
—
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