PIC16F684-ISL

Manufacturer Part NumberPIC16F684-ISL
ManufacturerMicrochip Technology Inc.
PIC16F684-ISL datasheets
 


Specifications of PIC16F684-ISL

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Page 108/164

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PIC16F684
REGISTER 12-3:
WDTCON – WATCHDOG TIMER CONTROL REGISTER (ADDRESS: 18h)
U-0
bit 7
bit 7-5
Unimplemented: Read as ‘0’
bit 4-1
WDTPS<3:0>: Watchdog Timer Period Select bits
Bit Value = Prescale Rate
0000 = 1:32
0001 = 1:64
0010 = 1:128
0011 = 1:256
0100 = 1:512 (Reset value)
0101 = 1:1024
0110 = 1:2048
0111 = 1:4096
1000 = 1:8192
1001 = 1:16384
1010 = 1:32768
1011 = 1:65536
1100 = reserved
1101 = reserved
1110 = reserved
1111 = reserved
bit 0
SWDTEN: Software Enable or Disable the Watchdog Timer
1 = WDT is turned on
0 = WDT is turned off (Reset value)
Note 1: If WDTE configuration bit = 1, then WDT is always enabled, irrespective of this
control bit. If WDTE configuration bit = 0, then it is possible to turn WDT on/off with
this control bit.
Legend:
R = Readable bit
-n = Value at POR
TABLE 12-8:
SUMMARY OF WATCHDOG TIMER REGISTERS
Address
Name
Bit 7
18h
WDTCON
81h
OPTION_REG
RAPU
(1)
2007h
CONFIG
CPD
Legend: Shaded cells are not used by the Watchdog Timer.
Note 1:
See Register 12-1 for operation of all Configuration Word register bits.
DS41202C-page 106
U-0
U-0
R/W-0
R/W-1
WDTPS3
WDTPS2
W = Writable bit
U = Unimplemented bit, read as ‘0’
‘1’ = Bit is set
‘0’ = Bit is cleared
Bit 6
Bit 5
Bit 4
WDTPS3 WDTPS2 WSTPS1 WDTPS0 SWDTEN
INTEDG
T0CS
T0SE
CP
MCLRE
PWRTE
WDTE
Preliminary
R/W-0
R/W-0
R/W-0
WDTPS1
WDTPS0 SWDTEN
bit 0
(1)
x = Bit is unknown
Bit 3
Bit 2
Bit 1
Bit 0
PSA
PS2
PS1
PS0
FOSC2
FOSC1
FOSC0
 2004 Microchip Technology Inc.