參數(shù)資料
型號: PIC12F505
廠商: Microchip Technology Inc.
元件分類: 8位微控制器
英文描述: 8/14-Pin, 8-Bit Flash Microcontrollers
中文描述: 8/14-Pin,8位閃存微控制器
文件頁數(shù): 52/100頁
文件大?。?/td> 741K
代理商: PIC12F505
PIC12F508/509/16F505
DS41236C-page 50
Preliminary
2007 Microchip Technology Inc.
FIGURE 7-12:
WATCHDOG TIMER BLOCK DIAGRAM
TABLE 7-7:
SUMMARY OF REGISTERS ASSOCIATED WITH THE WATCHDOG TIMER
Address
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
N/A
OPTION
(1)
OPTION
(2)
Shaded boxes = Not used by Watchdog Timer. – = unimplemented, read as ‘
0
’,
u
= unchanged.
PIC12F508/509 only.
PIC16F505 only.
GPWU
GPPU
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111
1111 1111
N/A
Legend:
Note 1:
RBWU
RBPU
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111
1111 1111
2:
(Figure 6-5)
Postscaler
Note 1:
T0CS, T0SE, PSA, PS<2:0> are bits in the OPTION register.
WDT Time-out
Watchdog
Time
From Timer0 Clock Source
WDT Enable
Configuration
Bit
PSA
8-to-1 MUX
PS<2:0>
(Figure 6-4)
To Timer0
0
1
M
U
X
1
0
PSA
MUX
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