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HT45F75 Datasheet(PDF) 123 Page - Holtek Semiconductor Inc

Part # HT45F75
Description  Body Fat Scale Flash MCU
PDF  190 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45F75 Datasheet(HTML) 123 Page - Holtek Semiconductor Inc

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Rev. 1.10
1��
De�e��e� 1�� �01�
Rev. 1.10
1�3
De�e��e� 1�� �01�
HT45F75
Body Fat Scale Flash MCU
HT45F75
Body Fat Scale Flash MCU
Bit0
RXAK:I2CBusReceiveacknowledgeflag
0:Slavereceiveacknowledgeflag
1:Slavedonotreceiveacknowledgeflag
TheSIMDregisterisusedtostorethedatabeingtransmittedandreceived.Thesameregisterisused
byboththeSPIandI2Cfunctions.BeforethedevicewritesdatatotheI2Cbus,theactualdatato
betransmittedmustbeplacedintheSIMDregister.AfterthedataisreceivedfromtheI2Cbus,the
devicecanreaditfromtheSIMDregister.AnytransmissionorreceptionofdatafromtheI2Cbus
mustbemadeviatheSIMDregister.
SIMD Register
Bit
7
6
5
4
3
2
1
0
Na�e
D7
D�
D5
D�
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
SIMA Register
Bit
7
6
5
4
3
2
1
0
Na�e
IICA�
IICA5
IICA�
IICA3
IICA�
IICA1
IICA0
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
Bit7~1
IICA6~IICA0:I2Cslaveaddress
IICA6~IICA0istheI2Cslaveaddressbit6~bit0.
TheSIMAregisterisalsousedbytheSPIinterfacebuthasthenameSIMC2.The
SIMAregisteristhelocationwherethe7-bitslaveaddressoftheslavedeviceis
stored.Bits7~1oftheSIMAregisterdefinethedeviceslaveaddress.Bit0isnot
defined.
Whenamasterdevice,whichisconnectedtotheI2Cbus,sendsoutanaddress,which
matchestheslaveaddressintheSIMAregister,theslavedevicewillbeselected.Note
thattheSIMAregisteristhesameregisteraddressasSIMC2whichisusedbytheSPI
interface.
Bit0
Undefinedbit
Thisbitcanbereadorwrittenbyusersoftwareprogram.



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