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PIC16F526-I/P Datenblatt(PDF) 38 Page - Microchip Technology

Teilenummer PIC16F526-I/P
Bauteilbeschribung  14-Pin, 8-Bit Flash Microcontroller
PDF  122 Pages
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Hersteller  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F526-I/P Datenblatt(HTML) 38 Page - Microchip Technology

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PIC16F526
DS41326D-page 38
 2010 Microchip Technology Inc.
FIGURE 7-2:
TIMER0 TIMING: INTERNAL CLOCK/NO PRESCALE
FIGURE 7-3:
TIMER0 TIMING: INTERNAL CLOCK/PRESCALE 1:2
TABLE 7-1:
REGISTERS ASSOCIATED WITH TIMER0
Addr
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
Power-On
Reset
Value on
All Other
Resets
01h
TMR0
Timer0 – 8-bit Real-Time Clock/Counter
xxxx xxxx
uuuu uuuu
08h
CM1CON0
C1OUT
C1OUTEN
C1POL
C1T0CS
C1ON
C1NREF
C1PREF
C1WU
1111 1111
uuuu uuuu
0Bh
CM2CON0
C2OUT
C2OUTEN
C2POL
C2PREF2
C2ON
C2NREF C2PREF1
C2WU
1111 1111
uuuu uuuu
N/A
OPTION
RBWU
RBPU
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111
1111 1111
N/A
TRIS(1)
—
—
I/O Control Register (PORTB, PORTC)
--11 1111
--11 1111
Legend:
Shaded cells are not used by Timer0. – = unimplemented, x = unknown, u = unchanged.
Note
1:
The TRIS of the T0CKI pin is overridden when T0CS = 1.
PC – 1
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Instruction
Fetch
Timer0
PC
PC + 1
PC + 2
PC + 3
PC + 4
PC + 6
T0
T0 + 1
T0 + 2
NT0
NT0 + 1
NT0 + 2
MOVWF TMR0 MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W
Write TMR0
executed
Read TMR0
reads NT0
Read TMR0
reads NT0
Read TMR0
reads NT0
Read TMR0
reads NT0 + 1
Read TMR0
reads NT0 + 2
Instruction
Executed
PC + 5
PC
(Program
Counter)
PC – 1
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Instruction
Fetch
Timer0
PC
PC + 1
PC + 2
PC + 3
PC + 4
PC + 6
T0
T0 + 1
NT0
NT0 + 1
MOVWF TMR0 MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W
Write TMR0
executed
Read TMR0
reads NT0
Read TMR0
reads NT0
Read TMR0
reads NT0
Read TMR0
reads NT0 + 1
Read TMR0
reads NT0 + 2
Instruction
Executed
PC + 5
PC
(Program
Counter)



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