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PIC16F87 Datasheet(PDF) 69 Page - Microchip Technology

Part # PIC16F87
Description  18/20/28-Pin Enhanced Flash MCUs with nanoWatt Technology
PDF  230 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F87 Datasheet(HTML) 69 Page - Microchip Technology

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 2002-2013 Microchip Technology Inc.
DS30487D-page 69
PIC16F87/88
EXAMPLE 6-1:
CHANGING THE PRESCALER ASSIGNMENT FROM WDT TO TIMER0
TABLE 6-1:
REGISTERS ASSOCIATED WITH TIMER0
CLRWDT
; Clear WDT and prescaler
BANKSEL
OPTION_REG
; Select Bank of OPTION_REG
MOVLW
b'xxxx0xxx'
; Select TMR0, new prescale
MOVWF
OPTION_REG
; value and clock source
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOR
Value on
all other
Resets
01h,101h
TMR0
Timer0 Module Register
xxxx xxxx
uuuu uuuu
0Bh,8Bh,
10Bh,18Bh
INTCON
GIE
PEIE
TMR0IE
INT0IE
RBIE TMR0IF INT0IF RBIF 0000 000x
0000 000u
81h,181h
OPTION_REG
RBPU
INTEDG
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111
1111 1111
Legend:
x
= unknown, u = unchanged. Shaded cells are not used by Timer0.



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