 |
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
|
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
HT68F003 bảng dữ liệu(PDF) 43 Page - Holtek Semiconductor Inc |
|
|
|||||||||||||||||||||||||||||
HT68F003 bảng dữ liệu(HTML) 43 Page - Holtek Semiconductor Inc |
|
|
43 / 119 page  Rev. 1.41 42 April 11, 2017 Rev. 1.41 43 April 11, 2017 HT68F002/HT68F0025/HT68F003 Cost-Effective Flash MCU with EEPROM HT68F002/HT68F0025/HT68F003 Cost-Effective Flash MCU with EEPROM Watchdog Timer TheWatchdogTimerisprovidedtopreventprogrammalfunctionsorsequencesfromjumpingto unknownlocations,duetocertainuncontrollableexternaleventssuchaselectricalnoise. Watchdog Timer Clock Source TheWatchdogTimerclocksourceisprovidedbytheinternalfLIRCclockwhichissuppliedbythe LIRCoscillator.TheWatchdogTimersourceclockisthensubdividedbyaratioof28to215togive longertimeouts,theactualvaluebeingchosenusingtheWS2~WS0bitsintheWDTCregister.The LIRCinternaloscillatorhasanapproximateperiodof32kHzatasupplyvoltageof5V.However,it shouldbenotedthatthisspecifiedinternalclockperiodcanvarywithVDD,temperatureandprocess variations.TheWDTcanbeenabled/disabledusingtheWDTCregister. Watchdog Timer Control Register Asingleregister,WDTC,controlstherequiredtimeoutperiodaswellastheenable/disable operation.TheWRFsoftwareresetflagwillbeindicatedintheSMOD1register.Theseregisters controltheoveralloperationoftheWatchdogTimer. WDTC Register Bit 7 6 5 4 3 2 1 0 Name WE4 WE3 WE2 WE1 WE0 WS2 WS1 WS0 R/W R/W R/W R/W R/W R/W R/W R/W R/W POR 0 1 0 1 0 0 1 1 Bit7~3 WE4 ~ WE0:WDTfunctionsoftwarecontrol 10101:WDTdisable 01010:WDTenable Othervalues:ResetMCU Whenthesebitsarechangedtoanyothervaluesbytheenvironmentalnoisetoreset themicrocontroller,theresetoperationwillbeactivatedafter2~3LIRCclockcycles andtheWRFbitwillbesetto1toindicatetheresetsource. Bit2~0 WS2 ~ WS0:WDTTime-outperiodselection 000:28/fLIRC 001:29/fLIRC 010:210/fLIRC 011:211/fLIRC(default) 100:212/fLIRC 101:213/fLIRC 110:214/fLIRC 111:215/fLIRC ThesethreebitsdeterminethedivisionratiooftheWatchdogTimersourececlock, whichinturndeterminesthetimeoutperiod. SMOD1 Register Bit 7 6 5 4 3 2 1 0 Name FSYSON — — — D3 LVRF — WRF R/W R/W — — — R/W R/W — R/W POR 0 — — — 0 x — 0 "x" unknown Bit7 FSYSON:fSYSControlinIDLEMode 0:Disable 1:Enable |
|
Link URL |
| Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Liên kết đến bảng dữ liệu | Trao đổi link | Tìm kiếm theo nhà sản xuất All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Vietnamese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
