參數(shù)資料
型號: PIC12F506
廠商: Microchip Technology Inc.
英文描述: 8/14-Pin, 8-Bit Flash Microcontroller
中文描述: 8/14-Pin,8位閃存微控制器
文件頁數(shù): 42/116頁
文件大?。?/td> 907K
代理商: PIC12F506
PIC12F510/16F506
DS41268C-page 40
Preliminary
2007 Microchip Technology Inc.
FIGURE 6-2:
TIMER0 TIMING: INTERNAL CLOCK/NO PRESCALE
FIGURE 6-3:
TIMER0 TIMING: INTERNAL CLOCK/PRESCALE 1:2
TABLE 6-1:
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
07h
CM1CON0
(2)
C1OUT
C1OUTEN
C1POL
C1T0CS
C1ON
C1NREF
C1PREF
C1WU
1111 1111
uuuu uuuu
08h
CM1CON0
(3)
C1OUT
C1OUTEN
C1POL
C1T0CS
C1ON
C1NREF
C1PREF
C1WU
1111 1111
uuuu uuuu
N/A
OPTION
TRISGPIO
(1)
GPWU
GPPU
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111
1111 1111
N/A
I/O Control Register
---- 1111
--11 1111
Legend:
Note
Shaded cells not used by Timer0, – = unimplemented,
x
= unknown,
u
= unchanged.
The TRIS of the T0CKI pin is overridden when T0CS =
1
.
For PIC12F510.
For PIC16F506.
1:
2:
3:
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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