HT66F302 datasheet(4/129 Pages) HOLTEK

4 / 129 page

Rev. 1.11

April 11, 2017

Rev. 1.11

April 11, 2017

HT66F302/HT66F303

Cost-Effective Flash MCU with EEPROM

HT66F302/HT66F303

Cost-Effective Flash MCU with EEPROM

Timer Modules – TM .......................................................................................... 59

Introduction ................................................................................................................................59

TM Operation .............................................................................................................................59

TM Clock Source........................................................................................................................60

TM Interrupts..............................................................................................................................60

TM External Pins........................................................................................................................60

TM Input/Output Pin Selection ...................................................................................................61

Programming Considerations.....................................................................................................62

Standard Type TM – STM .................................................................................. 63

Standard TM Operation..............................................................................................................63

Standard Type TM Register Description ....................................................................................63

Standard Type TM Operating Modes .........................................................................................68

Periodic Type TM – PTM.................................................................................... 78

Periodic TM Operation ...............................................................................................................78

Periodic Type TM Register Description......................................................................................78

Periodic Type TM Operating Modes...........................................................................................83

Analog to Digital Converter – ADC................................................................... 92

A/D Overview .............................................................................................................................92

A/D Converter Register Description...........................................................................................93

A/D Converter Data Registers – SADOL, SADOH.....................................................................93

A/D Converter Control Registers – SADC0, SADC1, SADC2, PASR ........................................93

A/D Operation ............................................................................................................................96

A/D Reference Voltage...............................................................................................................97

A/D Converter Input Signal ........................................................................................................98

Conversion Rate and Timing Diagram .......................................................................................98

Summary of A/D Conversion Steps............................................................................................99

Programming Considerations...................................................................................................100

A/D Transfer Function ..............................................................................................................100

A/D Programming Examples....................................................................................................101

Interrupts.......................................................................................................... 103

Interrupt Registers....................................................................................................................103

Interrupt Operation...................................................................................................................106

External Interrupt......................................................................................................................107

Multi-function Interrupt .............................................................................................................108

A/D Converter Interrupt............................................................................................................108

Time Base Interrupts................................................................................................................108

EEPROM Interrupt ...................................................................................................................109

TM Interrupts............................................................................................................................110

Interrupt Wake-up Function.....................................................................................................110

Programming Considerations................................................................................................... 110

Configuration Option....................................................................................... 111

Application Circuits......................................................................................... 111

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