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): 63/116頁
文件大小: 907K
代理商: PIC12F506
2007 Microchip Technology Inc.
Preliminary
DS41268C-page 61
PIC12F510/16F506
10.3
Reset
The device differentiates between various kinds of
Reset:
Power-on Reset (POR)
MCLR Reset during normal operation
MCLR Reset during Sleep
WDT Time-out Reset during normal operation
WDT Time-out Reset during Sleep
Wake-up from Sleep Reset on pin change
Wake-up from Sleep Reset on comparator
change
Some registers are not reset in any way, they are
unknown on POR and unchanged in any other Reset.
Most other registers are reset to “Reset state” on
Power-on Reset (POR), MCLR, WDT or Wake-up from
Sleep Reset on pin change or wake-up from Sleep
Reset on comparator change. The exceptions are TO,
PD, CWUF and RBWUF/GPWUF bits. They are set or
cleared differently in different Reset situations. These
bits are used in software to determine the nature of
Reset. See Table 10-4 for a full description of Reset
states of all registers.
TABLE 10-3:
RESET CONDITIONS FOR REGISTERS – PIC12F510
Register
Address
Power-on Reset
MCLR Reset, WDT Time-out,
Wake-up On Pin Change, Wake-up on
Comparator Change
W
INDF
TMR0
PCL
STATUS
FSR
OSCCAL
GPIO
CM1CON0
ADCON0
ADRES
OPTION
TRISIO
Legend:
Note 1:
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
qqqq qqqu
(1)
qqqq qqqu
(1)
xxxx xxxx
xxxx xxxx
uuuu uuuu
uuuu uuuu
1111 1111
1111 1111
qq0q quuu
(2)
11uu uuuu
0001 1xxx
110x xxxx
1111 111-
uuuu uuu-
--xx xxxx
1111 1111
--uu uuuu
uuuu uuuu
1111 1100
uu11 1100
xxxx xxxx
1111 1111
uuuu uuuu
1111 1111
--11 1111
--11 1111
u
= unchanged,
x
= unknown, – = unimplemented bit, read as ‘
0
’,
q
= value depends on condition.
Bits <7:2> of W register contain oscillator calibration values due to
MOVLW XX
instruction at top of
memory.
See Table 10-5 for Reset value for specific conditions.
2:
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