HT45F12 datasheet(4/104 Pages) HOLTEK

4 / 104 page

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HT45F12

8-Bit Flash MCU with Op Amps & Comparators

HT45F12

8-Bit Flash MCU with Op Amps & Comparators

Timer/Event Counter ..................................................................................... 56

Ti�e� Cont�ol Registe� – TMRC............................................................................................ 57

Configuring the Timer Mode.................................................................................................. 58

Configuring the Event Counter Mode.................................................................................... 58

Pulse Width Ca�tu�e Mode ................................................................................................... 59

P�og�a��a�le F�equency Divide� – PFD ............................................................................. �0

P�escale�............................................................................................................................... �1

I/O Inte�facing........................................................................................................................ �1

Ti�e�/Event Counte� Pin Inte�nal Filte�................................................................................. �1

P�og�a��ing Conside�ations................................................................................................ �1

Ti�e� P�og�a� Exa��le ....................................................................................................... ��

LDO function.................................................................................................. 63

Operational Amplifiers .................................................................................. 64

Operational Amplifier Registers............................................................................................. �4

Operational Amplifier Operation............................................................................................ �7

Operational Amplifier Functions ............................................................................................ �7

Comparator .................................................................................................... 71

Co��a�ato� O�e�ation .......................................................................................................... 71

Co��a�ato� Registe�s........................................................................................................... 71

Co��a�ato� Functions........................................................................................................... 73

Interrupts........................................................................................................ 75

Inte��u�t Registe�s................................................................................................................. 75

Inte��u�t O�e�ation................................................................................................................ 75

Inte��u�t P�io�ity..................................................................................................................... 7�

Exte�nal Inte��u�t................................................................................................................... 78

Ti�e�/Event Counte� Inte��u�t............................................................................................... 80

Ti�e Base Inte��u�t............................................................................................................... 80

Multi-function Inte��u�t .......................................................................................................... 81

Co��a�ato� Inte��u�t............................................................................................................. 81

EEPROM Inte��u�t ................................................................................................................ 8�

Inte��u�t Wake-u� Function................................................................................................... 8�

P�og�a��ing Conside�ations................................................................................................ 8�

Buzzer............................................................................................................. 83

Configuration Options................................................................................... 85

Application Circuits....................................................................................... 86

Instruction Set................................................................................................ 87

Int�oduction ........................................................................................................................... 87

Inst�uction Ti�ing.................................................................................................................. 87

Moving and T�ansfe��ing Data............................................................................................... 87

A�ith�etic O�e�ations............................................................................................................ 87

Logical and Rotate O�e�ations.............................................................................................. 88

B�anches and Cont�ol T�ansfe� ............................................................................................. 88

Bit O�e�ations ....................................................................................................................... 88

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