データシートサーチシステム
  Japanese  ▼
ALLDATASHEET.JP

X  

Preview PDF HTML

HT69F360 データシート(PDF) 74 Page - Holtek Semiconductor Inc

部品番号 HT69F360
部品情報  TinyPowerTM I/O Flash MCU with LCD & EEPROM
PDF  235 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  HOLTEK [Holtek Semiconductor Inc]
ホームページ  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT69F360 データシート(HTML) 74 Page - Holtek Semiconductor Inc

Back Button HT69F360 Datasheet HTML 70Page - Holtek Semiconductor Inc HT69F360 Datasheet HTML 71Page - Holtek Semiconductor Inc HT69F360 Datasheet HTML 72Page - Holtek Semiconductor Inc HT69F360 Datasheet HTML 73Page - Holtek Semiconductor Inc HT69F360 Datasheet HTML 74Page - Holtek Semiconductor Inc HT69F360 Datasheet HTML 75Page - Holtek Semiconductor Inc HT69F360 Datasheet HTML 76Page - Holtek Semiconductor Inc HT69F360 Datasheet HTML 77Page - Holtek Semiconductor Inc HT69F360 Datasheet HTML 78Page - Holtek Semiconductor Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 74 / 235 page
background image
Rev. 1.30
74
�ove��e� 1�� �01�
Rev. 1.30
75
�ove��e� 1�� �01�
HT69F340/HT69F350/HT69F360
TinyPowerTM I/O Flash MCU with LCD & EEPROM
HT69F340/HT69F350/HT69F360
TinyPowerTM I/O Flash MCU with LCD & EEPROM
systempower-uporexecutingtheclearWatchdogTimerinstructionsandissetwhenexecutingthe
“HALT”instruction.TheTOflagissetifaWDTtime-outoccurs,andcausesawake-upthatonly
resetstheProgramCounterandStackPointer,theotherflagsremainintheiroriginalstatus.
EachpinonPortAcanbesetupusingthePAWUregistertopermitanegativetransitiononthepin
towake-upthesystem.WhenaPortApinwake-upoccurs,theprogramwillresumeexecutionat
theinstructionfollowingthe“HALT”instruction.Ifthesystemiswokenupbyaninterrupt,then
twopossiblesituationsmayoccur.Thefirstiswheretherelatedinterruptisdisabledortheinterrupt
isenabledbutthestackisfull,inwhichcasetheprogramwillresumeexecutionattheinstruction
followingthe“HALT”instruction.Inthissituation,theinterruptwhichwoke-upthedevicewillnot
beimmediatelyserviced,butwillratherbeservicedlaterwhentherelatedinterruptisfinallyenabled
orwhenastacklevelbecomesfree.Theothersituationiswheretherelatedinterruptisenabledand
thestackisnotfull,inwhichcasetheregularinterruptresponsetakesplace.Ifaninterruptrequest
flagissethighbeforeenteringtheSLEEPorIDLEMode,thewake-upfunctionoftherelated
interruptwillbedisabled.
Watchdog Timer
TheWatchdogTimerisprovidedtopreventprogrammalfunctionsorsequencesfromjumpingto
unknownlocations,duetocertainuncontrollableexternaleventssuchaselectricalnoise.
Watchdog Timer Clock Source
TheWatchdogTimerclocksourceisprovidedbythefSclock,whichisinturnsuppliedbythefSUB
clock.ThefSUBclockcanbesourcedfromeithertheLXTorLIRCoscillatorselectedbytheFSS
bitintheSCCregister.TheLIRCinternaloscillatorhasanapproximatefrequencyof32kHzand
thisspecifiedinternalclockperiodcanvarywithVDD,temperatureandprocessvariations.TheLXT
oscillatorissuppliedbyanexternal32.768kHzcrystal.TheWatchdogTimersourceclockisthen
subdividedbyaratioof28to218togivelongertimeouts,theactualvaluebeingchosenusingthe
WS2~WS0bitsintheWDTCregister.
Watchdog Timer Control Register
Asingleregister,WDTC,controlstherequiredtimeoutperiodaswellastheenable/disable
operation.ThisregistercontrolstheoveralloperationoftheWatchdogTimer.
WDTC Register
Bit
7
6
5
4
3
2
1
0
�a�e
WE4
WE3
WE�
WE1
WE0
WS�
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:Disable
01010:Enable
Othervalues:ResetMCU
Ifthesebitsarechangedduetoadverseenvironmentalconditions,themicrocontroller
willreset.Theresetoperationwillbeactivatedafter2~3LIRCclockcyclesandthe
WRFbitintheSMOD1registerwillbesetto1.



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


データシート ダウンロード

Go To PDF Page


リンク URL



ALLDATASHEETはお客様のビジネスに役立ちますか？  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   データシートへのリンク    |   リンク交換   |   メーカーリスト
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
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