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HT66F4530 데이터시트(PDF) 69 Page - Holtek Semiconductor Inc

부품명 HT66F4530
상세설명  A/D Flash MCU with Dual Operational Amplifiers
PDF  224 Pages
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제조업체  HOLTEK [Holtek Semiconductor Inc]
홈페이지  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT66F4530 데이터시트(HTML) 69 Page - Holtek Semiconductor Inc

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Rev. 1.00
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Rev. 1.00
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HT66F4530/HT66F4540/HT66F4550
A/D Flash MCU with Dual Operational Amplifiers
HT66F4530/HT66F4540/HT66F4550
A/D Flash MCU with Dual Operational Amplifiers
LVR
Inte�nal Reset
tRSTD + tSST
Low Voltage Reset Timing Chart
• LVRC Register
Bit
7
6
5
4
3
2
1
0
Na�e
LVS7
LVS�
LVS5
LVS4
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:LVRVoltageSelectcontrol
01010101:2.1V
00110011:2.55V
10011001:3.15V
10101010:3.8V
Anyothervalue:GeneratesMCUreset–registerisresettoPORvalue
Whenanactuallowvoltageconditionoccurs,asspecifiedbyoneofthefourdefined
LVRvoltagevaluesabove,anMCUresetwillbegenerated.Inthissituationthe
registercontentswillremainthesameaftersucharesetoccurs.
Anyregistervalue,otherthanthefourdefinedLVRvaluesabove,willalsoresultin
thegenerationofanMCUreset.TheresetoperationwillbeactivatedaftertSRESETtime.
HoweverinthissituationtheregistercontentswillberesettothePORvalue.
• RSTFC Register
Bit
7
6
5
4
3
2
1
0
Na�e
—
—
—
—
RSTF
LVRF
LRF
WRF
R/W
—
—
—
—
R/W
R/W
R/W
R/W
POR
—
—
—
—
0
x
0
0
"x": unknown
Bit7~4
Unimplemented,readas"0"
Bit3
RSTF:Resetcontrolregistersoftwareresetflag
Describeelsewhere.
Bit2
LVRF:LVRfunctionresetflag
0:Notoccur
1:Occurred
Thisbitissetto1whenaspecificLowVoltageResetsituationconditionoccurs.This
bitcanonlybeclearedto0bytheapplicationprogram.
Bit1
LRF:LVRcontrolregistersoftwareresetflag
0:Notoccur
1:Occurred
Thisbitissetto1iftheLVRCregistercontainsanynon-definedLVRvoltageregister
values.Thisineffectactslikeasoftware-resetfunction.Thisbitcanonlybeclearedto
0bytheapplicationprogram.
Bit0
WRF:WDTcontrolregistersoftwareresetflag
Describeelsewhere.



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