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HT45F3W Datasheet(PDF) 117 Page - Holtek Semiconductor Inc

Part # HT45F3W
Description  HT45F3W
PDF  167 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45F3W Datasheet(HTML) 117 Page - Holtek Semiconductor Inc

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Rev. 1.50
11�
De�e��e� 01� �01�
Rev. 1.50
117
De�e��e� 01� �01�
HT45F3W
R-Type Blood Pressure Meter Flash MCU
HT45F3W
R-Type Blood Pressure Meter Flash MCU
SPI0D Register
Bit
7
6
5
4
3
2
1
0
Na�e
D7
D�
D5
D4
D3
D�
D1
D0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
x
x
x
x
x
x
x
x
"x" unknown
Bit7~0
D7~D0:SPI0Serialbusdataregister
SPI1C0 Register
Bit
7
6
5
4
3
2
1
0
Na�e
SPI1�
SPI11
SPI10
—
—
—
SPI1EN
—
R/W
R/W
R/W
R/W
—
—
—
R/W
—
POR
1
1
1
—
—
—
0
—
Bit7~5
SPI12~SPI10:SPI1OperatingModeControl
000:SPI1mastermode;SPI1clockisfSYS/4
001:SPI1mastermode;SPI1clockisfSYS/16
010:SPI1mastermode;SPI1clockisfSYS/64
011:SPI1mastermode;SPI1clockisfSUB
100:SPI1mastermode;SPI1clockisTM0CCRPmatchfrequency/4
101:SPI1slavemode
110:Unusedmode
111:Unusedmode
ThesebitssetuptheoveralloperatingmodeoftheSPI1function.Aswellasselecting
iftheSPI1function,theyareusedtocontroltheSPI1Master/Slaveselectionandthe
SPI1Masterclockfrequency.TheSPI1clockisafunctionofthesystemclockbutcan
alsobechosentobesourcedfromthefSUBandtheTM0.IftheSPI1SlaveModeis
selectedthentheclockwillbesuppliedbyanexternalMasterdevice.
Bit4~2
Unimplemented,readas“0”
Bit1
SPI1EN:SPI1Control
0:Disable
1:Enable
Thebitistheoverallon/offcontrolfortheSPI1interface.WhentheSPI1ENbitis
clearedtozerotodisabletheSPI1interface,theS1DI,S1DO,S1CKandS1CSlines
willbeinafloatingconditionandtheSPI1operatingcurrentwillbereducedtoa
minimumvalue.WhenthebitishightheSPI1interfaceisenabled.
Bit0
Unimplemented,readas"0"



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