HT45F0057 datasheet(3/88 Pages) HOLTEK

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Rev. 1.00

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HT45F0057

Induction Cooker Flash MCU

HT45F0057

Induction Cooker Flash MCU

Oscillators .......................................................................................................... 26

�s�illato� �ve�view ....................................................................................................................�6

System Clock Configurations ....................................................................................................�6

High Speed Inte�nal RC �s�illato� – HIRC ...............................................................................��

Inte�nal 3�kHz �s�illato� – LIRC................................................................................................��

Power Down Mode and Wake-up ..................................................................... 27

Powe� Down Mode.....................................................................................................................��

Ente�ing the Powe� Down Mode ................................................................................................��

Stand�y Cu��ent Conside�ations................................................................................................�8

Wake-up.....................................................................................................................................�8

Watchdog Timer................................................................................................. 29

Wat�hdog Time� Clo�k Sou��e...................................................................................................�9

Wat�hdog Time� �pe�ation ........................................................................................................�9

Reset and Initialisation...................................................................................... 30

Reset Fun�tions ........................................................................................................................30

Reset Initial Conditions .............................................................................................................31

Input/Output Ports ............................................................................................ 33

Pull-high Resisto�s .....................................................................................................................33

Po�t A Wake-up ..........................................................................................................................34

I/� Po�t Cont�ol Registe�s..........................................................................................................34

I/� Pin St�u�tu�es.......................................................................................................................34

P�og�amming Conside�ations ....................................................................................................35

Timer/Event Counters ....................................................................................... 36

Configuring the Timer/Event Counter Input Clock Source .........................................................36

Time�/Event Counte� Registe�s – TMR0� TMR1� TMR�.............................................................3�

Time� Cont�ol Registe�s – TMR0C� TMR1C� TMR�C ................................................................3�

Time� Mode ................................................................................................................................40

Event Counte� Mode .................................................................................................................40

Pulse Width Measu�ement Mode...............................................................................................41

Mode 0 .......................................................................................................................................4�

P�es�ale�....................................................................................................................................4�

I/� Inte�fa�ing.............................................................................................................................4�

P�og�amming Conside�ations.....................................................................................................4�

Time� P�og�am Example ............................................................................................................43

Analog to Digital Converter ............................................................................. 44

A/D �ve�view .............................................................................................................................44

A/D Conve�te� Data Registe�s – ADRL� ADRH ..........................................................................44

A/D Conve�te� Cont�ol Registe�s – ADCR� ACSR� PCRL� PCRH..............................................45

A/D �pe�ation ............................................................................................................................4�

A/D Input Pins ............................................................................................................................48

Summa�y of A/D Conve�sion Steps............................................................................................48

P�og�amming Conside�ations.....................................................................................................49

A/D T�ansfe� Fun�tion ................................................................................................................49

A/D P�og�amming Example........................................................................................................50

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