PIC12F683-E/P Microchip Technology Inc., PIC12F683-E/P Datasheet - Page 92

• Manufacturer Part Number: PIC12F683-E/P
• Description: 8 PIN, 3.5 KB FLASH, 128 RAM, 6 I/O, PDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC12F683-E/P

• A/d Inputs: 4 Channel, 10-Bit
• Comparators: 1
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Frequency: 20 MHz
• Input Output: 6
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 8-pin PDIP
• Programmable Memory: 3.5K Bytes
• Ram Size: 128 Bytes
• Serial Interface: None
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC12F683
REGISTER 12-3:
TABLE 12-8:
DS41211B-page 90
18h
81h
2007h
Legend: Shaded cells are not used by the Watchdog Timer.
Note 1:
Address
(1)
WDTCON
OPTION_REG
CONFIG
bit 7-5
bit 4-1
bit 0
See Register 12-1 for operation of all Configuration Word register bits.
Name
SUMMARY OF WATCHDOG TIMER REGISTERS
WDTCON – WATCHDOG TIMER CONTROL REGISTER (ADDRESS: 18h)
bit 7
Unimplemented: Read as ‘0’
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
SWDTEN: Software Enable or Disable the Watchdog Timer
1 = WDT is turned on
0 = WDT is turned off (Reset value)
Legend:
R = Readable bit
- n = Value at POR
Note 1: If WDTE configuration bit = 1, then WDT is always enabled, irrespective of this
U-0
—
GPPU
Bit 7
CPD
—
control bit. If WDTE configuration bit = 0, then it is possible to turn WDT on/off with
this control bit.
U-0
—
INTEDG
Bit 6
CP
—
U-0
Preliminary
—
W = Writable bit
‘1’ = Bit is set
MCLRE
T0CS
Bit 5
—
WDTPS3
R/W-0
WDTPS3 WDTPS2 WSTPS1 WDTPS0 SWDTEN
PWRTE
T0SE
Bit 4
WDTPS2
R/W-1
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
WDTE
Bit 3
PSA
(1)
WDTPS1
R/W-0
FOSC2
 2004 Microchip Technology Inc.
Bit 2
PS2
WDTPS0 SWDTEN
x = Bit is unknown
R/W-0
FOSC1
Bit 1
PS1
R/W-0
FOSC0
Bit 0
PS0
bit 0