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HT45F4MA bảng dữ liệu(PDF) 55 Page - Holtek Semiconductor Inc

tên linh kiện HT45F4MA
Giải thích chi tiết về linh kiện  Power Bank Flash MCU
PDF  145 Pages
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nhà sản xuất  HOLTEK [Holtek Semiconductor Inc]
Trang chủ  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45F4MA bảng dữ liệu(HTML) 55 Page - Holtek Semiconductor Inc

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Rev. 1.20
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Rev. 1.20
55
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HT45F4MA/HT45FH4MA/HT45FH4MA-1
Power Bank Flash MCU
HT45F4MA/HT45FH4MA/HT45FH4MA-1
Power Bank Flash MCU
Port A Wake-up
TheHALTinstructionforcesthemicrocontrollerintotheSLEEPorIDLEModewhichpreserves
power,afeaturethatisimportantforbatteryandotherlow-powerapplications.Variousmethods
existtowake-upthemicrocontroller,oneofwhichistochangethelogicconditionononeofthePort
Apinsfromhightolow.Thisfunctionisespeciallysuitableforapplicationsthatcanbewokenup
viaexternalswitches.EachpinonPortAcanbeselectedindividuallytohavethiswake-upfeature
usingthePAWUregister.
PAWU Register
Bit
7
6
5
4
3
2
1
0
Na�e
D7
D�
D5
D�
D3
D2
D1
D0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
Bit7~0
I/OPortAbit7~bit0WakeUpControl
0:Disable
1:Enable
I/O Port Control Registers
EachI/OporthasitsowncontrolregisterknownasPAC~PBC,tocontroltheinput/output
configuration.Withthiscontrolregister,eachCMOSoutputorinputcanbereconfigured
dynamicallyundersoftwarecontrol.EachpinoftheI/Oportsisdirectlymappedtoabitinits
associatedportcontrolregister.FortheI/Opintofunctionasaninput,thecorrespondingbitofthe
controlregistermustbewrittenasa“1”.Thiswillthenallowthelogicstateoftheinputpintobe
directlyreadbyinstructions.Whenthecorrespondingbitofthecontrolregisteriswrittenasa“0”,
theI/OpinwillbesetupasaCMOSoutput.Ifthepiniscurrentlysetupasanoutput,instructions
canstillbeusedtoreadtheoutputregister.However,itshouldbenotedthattheprogramwillinfact
onlyreadthestatusoftheoutputdatalatchandnottheactuallogicstatusoftheoutputpin.
PAC Register
Bit
7
6
5
4
3
2
1
0
Na�e
D7
D�
D5
D�
D3
D2
D1
D0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
1
1
1
1
1
1
1
1
Bit7~0
I/OPortAbit7~bit0Input/OutputControl
0:Output
1:Input
PBC Register
Bit
7
6
5
4
3
2
1
0
Na�e
D7
D�
D5
D�
D3
D2
D1
D0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
1
1
1
1
1
1
1
1
Bit7~0
I/OPortBbit7~bit0Input/OutputControl
0:Output
1:Input



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