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HT45F65 Datasheet(PDF) 63 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) 63 Page - Holtek Semiconductor Inc

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Rev. 1.60
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HT45F65/HT45F66/HT45F67
Glucose Meter 8-Bit Flash MCU
• LVRC Register
Bit
7
6
5
4
3
2
1
0
�a�e
LVS7
LVS6
LVS�
LVS�
LVS3
LVS�
LVS1
LVS0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
1
0
1
0
1
0
1
Bit7~0
LVS7~LVS0:LVRvoltageselect
01010101:2.1V(default)
00110011:2.55V
10011001:3.15V
10101010:3.8V
Othervalues:MCUreset(resetwillbeactiveafter2~3LIRCclockfordebouncetime).
Whenanactuallowvoltageconditionoccurs,asspecifiedbyoneofthefourdefined
LVRvoltagevaluesabove,anMCUresetwillbegenerated.Inthissituationthe
registercontentswillremainthesameaftersucharesetoccurs.
Anyregistervalue,otherthanthefourdefinedLVRvaluesabove,willalsoresultinthe
generationofanMCUreset.Theresetoperationwillbeactivatedafter2~3LIRCclock
cycles.HoweverinthissituationtheregistercontentswillberesettothePORvalue.
• SMOD1 Register
Bit
7
6
5
4
3
2
1
0
�a�e
FSYSO�
—
—
—
—
LVRF
LRF
WRF
R/W
R/W
—
—
—
—
R/W
R/W
R/W
POR
0
—
—
—
—
x
0
0
“x” unknown
Bit7
FSYSON:fSYSControlinIDLEMode
Describedelsewhere.
Bit6~3
Unimplemented,readas"0"
Bit2
LVRF:resetcausedbyLVRfunctionactivation
0:notactive
1:active
Thisbitcanbeclearto"0",butcannotsetto"1".
Bit1
LRF:resetcausedbyLVRCsetting
0:notactive
1:active
Thisbitcanbeclearto"0",butcannotsetto"1".
Bit0
WRF:resetcausedbyWE[4:0]setting
Describedelsewhere.



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