參數(shù)資料
型號: PIC10F222-E/OT
廠商: Microchip Technology
文件頁數(shù): 36/86頁
文件大?。?/td> 0K
描述: IC PIC MCU FLASH 512X12 SOT-23-6
標(biāo)準(zhǔn)包裝: 3,000
系列: PIC® 10F
核心處理器: PIC
芯體尺寸: 8-位
速度: 8MHz
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 4
程序存儲器容量: 768B(512 x 12)
程序存儲器類型: 閃存
RAM 容量: 23 x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 2x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: SOT-23-6
包裝: 散裝
2007 Microchip Technology Inc.
DS41270E-page 39
PIC10F220/222
FIGURE 8-6:
WATCHDOG TIMER BLOCK DIAGRAM
TABLE 8-4:
SUMMARY OF REGISTERS ASSOCIATED WITH THE WATCHDOG TIMER
8.7
Time-out Sequence, Power-down
and Wake-up from Sleep Status
Bits (TO/PD/GPWUF/CWUF)
The TO, PD and GPWUF bits in the STATUS register
can be tested to determine if a Reset condition has
been caused by a Power-up condition, a MCLR,
Watchdog Timer (WDT) Reset or wake-up on pin
change.
TABLE 8-5:
TO/PD/GPWUF STATUS AFTER RESET
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
GPWU
GPPU
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111
Legend: Shaded boxes = Not used by Watchdog Timer, – = unimplemented, read as ‘0’, u = unchanged.
Postscaler
Note 1:
T0CS, T0SE, PSA, PS<2:0> are bits in the OPTION register.
WDT Time-out
Watchdog
Timer
From Timer0 Clock Source
WDT Enable
Configuration
Bit
PSA
Postscaler
8-to-1 MUX
PS<2:0>
To Timer0
0
1
M
U
X
1
0
PSA
MUX
3
GPWUF
TO
PD
Reset Caused By
00
0
WDT wake-up from Sleep
00
u
WDT time-out (not from Sleep)
01
0
MCLR wake-up from Sleep
01
1
Power-up
0u
u
MCLR not during Sleep
11
0
Wake-up from Sleep on pin change
Legend: u = unchanged, x = unknown, – = unimplemented bit, read as ‘0’, q = value depends on condition.
Note 1:
The TO, PD and GPWUF bits maintain their status (u) until a Reset occurs. A low-pulse on the MCLR
input does not change the TO, PD or GPWUF Status bits.
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