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HT66F20 Datasheet(PDF) 133 Page - Holtek Semiconductor Inc

Part # HT66F20
Description  Enhanced A/D Flash Type 8-Bit MCU with EEPROM
PDF  298 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT66F20 Datasheet(HTML) 133 Page - Holtek Semiconductor Inc

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Rev. 1.90
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HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
Enhanced A/D Flash Type 8-Bit MCU with EEPROM
HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
Enhanced A/D Flash Type 8-Bit MCU with EEPROM
• TM2DL Register – 16-bit STM
Bit
7
6
5
4
3
2
1
0
Name
D7
D6
D5
D4
D�
D�
D1
D0
R/W
R
R
R
R
R
R
R
R
POR
0
0
0
0
0
0
0
0
Bit7~0
TM2DL:TM2CounterLowByteRegisterbit7~bit0
TM216-bitCounterbit7~bit0
• TM2DH Register – 16-bit STM
Bit
7
6
5
4
3
2
1
0
Name
D15
D14
D1�
D1�
D11
D10
D9
D8
R/W
R
R
R
R
R
R
R
R
POR
0
0
0
0
0
0
0
0
Bit7~0
TM2DH:TM2CounterHighByteRegisterbit7~bit0
TM216-bitCounterbit15~bit8
• TM2AL Register – 16-bit STM
Bit
7
6
5
4
3
2
1
0
Name
D7
D6
D5
D4
D�
D�
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
TM2AL:TM2CCRALowByteRegisterbit7~bit0
TM216-bitCCRAbit7~bit0
• TM2AH Register – 16-bit STM
Bit
7
6
5
4
3
2
1
0
Name
D15
D14
D1�
D1�
D11
D10
D9
D8
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
TM2AH:TM2CCRAHighByteRegisterbit7~bit0
TM216-bitCCRAbit15~bit8
• TM2RP Register – 16-bit STM
Bit
7
6
5
4
3
2
1
0
Name
D7
D6
D5
D4
D�
D�
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
TM2RP:TM2CCRPRegisterbit7~bit0
TM2CCRP8-bitregister,comparedwiththeTM2Counterbit15~bit8.ComparatorP
MatchPeriod
0:65536TM2clocks
1~255:256×(1~255)TM2clocks
TheseeightbitsareusedtosetupthevalueontheinternalCCRP8-bitregister,which
arethencomparedwiththeinternalcounter'shighesteightbits.Theresultofthis
comparisoncanbeselectedtocleartheinternalcounteriftheT2CCLRbitissetto
zero.SettingtheT2CCLRbittozeroensuresthatacomparematchwiththeCCRP
valueswillresettheinternalcounter.AstheCCRPbitsareonlycomparedwiththe
highesteightcounterbits,thecomparevaluesexistin256clockcyclemultiples.
Clearingalleightbitstozeroisineffectallowingthecountertooverflowatits
maximumvalue.



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