Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

Preview PDF HTML

HT45F39 Datasheet(PDF) 39 Page - Holtek Semiconductor Inc

Part # HT45F39
Description  Ultrasonic Distance Measurement 8-bit Flash MCU
PDF  102 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45F39 Datasheet(HTML) 39 Page - Holtek Semiconductor Inc

Back Button HT45F39 Datasheet HTML 35Page - Holtek Semiconductor Inc HT45F39 Datasheet HTML 36Page - Holtek Semiconductor Inc HT45F39 Datasheet HTML 37Page - Holtek Semiconductor Inc HT45F39 Datasheet HTML 38Page - Holtek Semiconductor Inc HT45F39 Datasheet HTML 39Page - Holtek Semiconductor Inc HT45F39 Datasheet HTML 40Page - Holtek Semiconductor Inc HT45F39 Datasheet HTML 41Page - Holtek Semiconductor Inc HT45F39 Datasheet HTML 42Page - Holtek Semiconductor Inc HT45F39 Datasheet HTML 43Page - Holtek Semiconductor Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 39 / 102 page
background image
Rev. 1.10
38
July 01, 2016
Rev. 1.10
39
July 01, 2016
HT45F39/HT45F391
Ultrasonic Distance Measurement 8-bit Flash MCU
HT45F39/HT45F391
Ultrasonic Distance Measurement 8-bit Flash MCU
AWDTCsoftwareresetwillbegeneratedwhenavalueotherthan"10101"or"01010",existinthe
highestfivebitsoftheWDTCregister.TheWRFbitintheCTRLregisterwillbesethighwhenthis
occurs,thusindicatingthegenerationofaWDTCsoftwarereset.
• 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
10101or01010:WDTEnabled
Othervalues:ResetMCU
Whenthesebitsarechangedtoanyothervaluesduetoenvironmentalnoisethe
microcontrollerwillbereset;thisresetoperationwillbeactivatedafter2~3LIRC
clockcyclesandtheWRFbitintheCTRLregisterwillbesetto1toindicatethereset
source.
Bit2~0
WS2, WS1, WS0:WDTtime-outperiodselection
Describedelsewhere
Reset Initial Conditions
Thedifferenttypesofresetdescribedaffecttheresetflagsindifferentways.Theseflags,knownas
PDFandTOarelocatedinthestatusregisterandarecontrolledbyvariousmicrocontrolleroperations,
suchastheSLEEPModefunctionorWatchdogTimer.Theresetflagsareshowninthetable:
TO
PDF
RESET Conditions
0
0
Power-on reset
u
u
LVR reset during NORMAL
1
u
WDT time-out reset during NORMAL
1
1
WDT time-out reset during SLEEP Mode operation
Note:"u"standsforunchanged
Thefollowingtableindicatesthewayinwhichthevariouscomponentsofthemicrocontrollerare
affectedafterapower-onresetoccurs.
Item
Condition After RESET
Program Counter
Reset to zero
Interrupts
All interrupts will be disabled
WDT
Clear after reset, WDT begins counting
Timer/Event Counter
Timer Counter will be turned off
Input/Output Ports
I/O ports will be setup as inputs
Stack Pointer
Stack Pointer will point to the top of the stack



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


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
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