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HT45F65 Datasheet(PDF) 149 Page - Holtek Semiconductor Inc

Part # HT45F65
Description  Glucose Meter 8-Bit Flash MCU
PDF  231 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45F65 Datasheet(HTML) 149 Page - Holtek Semiconductor Inc

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Rev. 1.60
1�8
�ove��e� ��� �01�
Rev. 1.60
1�9
�ove��e� ��� �01�
HT45F65/HT45F66/HT45F67
Glucose Meter 8-Bit Flash MCU
Audio DAC
Thedevicescontainaninternal16-bitDACfunctionwhichcanbeusedforaudiosignalgeneration.
Audio Output and Volume Control
ThevoicedatamustbewrittenintoregisterADALandADAH.Theaudiooutputswillbewritten
intothehighernibbleofADALandthewholebyteofADAH.Thereare8scalesofvolume
controllablelevelthatareprovidedforthevoltagetypeDACoutput.Theprogrammercanchange
thevolumebyonlywritingthevolumecontroldatatotheVOL[2:0].
Voice Control bit
ThevoiceDACcontrolbitADAENcontrolsDACcircuitenable/disable.IftheDACcircuitisnot
enabled,anyADAH/ADALoutputisinvalid.Writinga"1"toADAENbitistoenableDACcircuit,
andwritinga"0"toADAENbitistodisableDACcircuit.
ADAC Register
Bit
7
6
5
4
3
2
1
0
�a�e
VOL�
VOL1
VOL0
—
—
—
—
ADAE�
R/W
R/W
R/W
R/W
—
—
—
—
R/W
POR
0
0
0
—
—
—
—
0
Bit7~5
VOL2~VOL0:Volumecontrol
Bit4~1
Unimplemented,readas"0"
Bit0
ADAEN:AudioDACcontrol
0:disabled
1:enabled
Whenthisbitisequalto"0",theaudioDACenterpowerdownmode.
ADAL Register
Bit
7
6
5
4
3
2
1
0
�a�e
D3
D�
D1
D0
—
—
—
—
R/W
R/W
R/W
R/W
R/W
—
—
—
—
POR
0
0
0
0
—
—
—
—
Bit7~4
D3~D0:Thebit[3:0]ofdataofaudioDAC
Bit3~0
Unimplemented,readas"0"
ADAH Register
Bit
7
6
5
4
3
2
1
0
�a�e
D11
D10
D9
D8
D7
D6
D�
D�
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
D11~D4:Thebit[11:4]ofdataofaudioDAC



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