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HT66F319 Datasheet(PDF) 31 Page - Holtek Semiconductor Inc

Part # HT66F319
Description  Enhanced A/D Flash MCU with EEPROM and UART
PDF  185 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT66F319 Datasheet(HTML) 31 Page - Holtek Semiconductor Inc

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Rev. 1.20
30
De�e��e� 0�� 201�
Rev. 1.20
31
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HT66F319
Enhanced A/D Flash MCU with EEPROM and UART
HT66F319
Enhanced A/D Flash MCU with EEPROM and UART
EED Register
Bit
7
6
5
4
3
2
1
0
Na�e
D7
D�
D�
D4
D3
D2
D1
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
Bit7~0
D7~D0:DataEEPROMdata
DataEEPROMdatabit7~bit0
EEC Register
Bit
7
6
5
4
3
2
1
0
Na�e
─
─
─
─
WREN
WR
RDEN
RD
R/W
─
─
─
─
R/W
R/W
R/W
R/W
POR
─
─
─
─
0
0
0
0
Bit7~4
Unimplemented,readas"0"
Bit3
WREN:DataEEPROMWriteEnable
0:Disable
1:Enable
ThisistheDataEEPROMWriteEnableBitwhichmustbesethighbeforeData
EEPROMwriteoperationsarecarriedout.ClearingthisbittozerowillinhibitData
EEPROMwriteoperations.
Bit2
WR:EEPROMWriteControl
0:Writecyclehasfinished
1:Activateawritecycle
ThisistheDataEEPROMWriteControlBitandwhensethighbytheapplication
programwillactivateawritecycle.Thisbitwillbeautomaticallyresettozerobythe
hardwareafterthewritecyclehasfinished.Settingthisbithighwillhavenoeffectif
theWRENhasnotfirstbeensethigh.
Bit1
RDEN:DataEEPROMReadEnable
0:Disable
1:Enable
ThisistheDataEEPROMReadEnableBitwhichmustbesethighbeforeData
EEPROMreadoperationsarecarriedout.ClearingthisbittozerowillinhibitData
EEPROMreadoperations.
Bit0
RD:EEPROMReadControl
0:Readcyclehasfinished
1:Activateareadcycle
ThisistheDataEEPROMReadControlBitandwhensethighbytheapplication
programwillactivateareadcycle.Thisbitwillbeautomaticallyresettozerobythe
hardwareafterthereadcyclehasfinished.Settingthisbithighwillhavenoeffectif
theRDENhasnotfirstbeensethigh.
Note:TheWREN,WR,RDENandRDcannotbesetto"1"atthesametimeinone
instruction.TheWRandRDcannotbesetto"1"atthesametime.



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