HT66F25D datasheet(4/177 Pages) HOLTEK

4 / 177 page

Rev. 1.00

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Rev. 1.00

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A/D Flash Type 8-bit MCU with EEPROM

HT66F24D/HT66F25D

Timer Modules – TM ...................................................................................... 66

Introd�ction ........................................................................................................................... ��

TM Operation ........................................................................................................................ �7

TM C�ock So�rce................................................................................................................... �7

TM Interr�pts......................................................................................................................... �7

TM Externa� Pins................................................................................................................... �8

TM Inp�t/O�tp�t Pin Contro� Registers ................................................................................. �8

Programming Considerations................................................................................................ 73

Compact Type TM – CTM .............................................................................. 74

Compact TM Operation......................................................................................................... 74

Compact T�pe TM Register Description................................................................................ 75

Compact T�pe TM Operation Modes .................................................................................... 79

Standard Type TM – STM .............................................................................. 85

Standard TM Operation......................................................................................................... 85

Standard T�pe TM Register Description ............................................................................... 8�

Standard T�pe TM Operation Modes .................................................................................... 90

Capt�re Inp�t Mode .............................................................................................................. 98

Enhanced Type TM – ETM........................................................................... 100

Enhanced TM Operation ..................................................................................................... 100

Enhanced T�pe TM Register Description............................................................................ 101

Enhanced T�pe TM Operation Modes................................................................................. 108

Analog to Digital Converter ........................................................................ 124

A/D Overview ...................................................................................................................... 1�4

A/D Converter Register Description.................................................................................... 1�4

A/D Operation ..................................................................................................................... 1�8

A/D Inp�t Pins ..................................................................................................................... 1�9

S�mmar� of A/D Conversion Steps..................................................................................... 130

Programming Considerations.............................................................................................. 131

A/D Transfer F�nction ......................................................................................................... 131

A/D Programming Examp�es............................................................................................... 13�

Interrupts...................................................................................................... 134

Interr�pt Registers............................................................................................................... 134

Interr�pt Operation.............................................................................................................. 140

Externa� Interr�pt................................................................................................................. 14�

M��ti-f�nction Interr�pt ........................................................................................................ 14�

A/D Converter Interr�pt....................................................................................................... 14�

Time Base Interr�pt............................................................................................................. 143

LVD Interr�pt ....................................................................................................................... 144

TM Interr�pt......................................................................................................................... 144

Interr�pt Wake-�p F�nction................................................................................................. 144

Programming Considerations.............................................................................................. 145

HT66F25D Datasheet(PDF) 4 Page - Holtek Semiconductor Inc

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