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PIC16F883-E/SO. 데이터시트(PDF) 229 Page - Microchip Technology

부품명 PIC16F883-E/SO.
상세설명  28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers
PDF  338 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F883-E/SO. 데이터시트(HTML) 229 Page - Microchip Technology

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 2006-2012 Microchip Technology Inc.
DS41291G-page 229
PIC16F882/883/884/886/887
TABLE 14-8:
SUMMARY OF REGISTERS ASSOCIATED WITH WATCHDOG TIMER
TABLE 14-9:
SUMMARY OF CONFIGURATION WORD ASSOCIATED WITH WATCHDOG TIMER
REGISTER 14-3:
WDTCON: WATCHDOG TIMER CONTROL REGISTER
U-0
U-0
U-0
R/W-0
R/W-1
R/W-0
R/W-0
R/W-0
—
—
—
WDTPS3
WDTPS2
WDTPS1
WDTPS0
SWDTEN(1)
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
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)
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.
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register
on Page
OPTION_REG
RBPU
INTEDG
T0CS
T0SE
PSA
PS2
PS1
PS0
32
WDTCON
—
—
—
WDTPS3 WDTPS2 WSTPS1 WDTPS0 SWDTEN
229
Legend: Shaded cells are not used by the Watchdog Timer.
Name
Bits
Bit -/7
Bit -/6
Bit 13/5
Bit 12/4
Bit 11/3
Bit 10/2
Bit 9/1
Bit 8/0
Register
on Page
CONFIG1(1)
13:8
—
—
DEBUG
LVP
FCMEN
IESO
BOREN 1 BOREN0
214
7:0
CPD
CP
MCLRE
PWRTE
WDTE
FOSC 2
FOSC 1
FOSC 0
Legend:
– = unimplemented locations read as ‘0’. Shaded cells are not used by the Watchdog Timer.
Note 1:
See Configuration Word Register 1 (Register 14-1) for operation of all register bits.



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