HT45F5Q datasheet(3/114 Pages) HOLTEK

3 / 114 page

Rev. 1.10

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Rev. 1.10

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HT45F5Q

Charger Flash MCU

HT45F5Q

Charger Flash MCU

Special Function Register Description........................................................ 25

Indi�e�t Add�essing Registe�s – IAR0� IAR1 ......................................................................... �5

Me�o�y Pointe�s – MP0� MP1 .............................................................................................. �5

Bank Pointe� – BP................................................................................................................. ��

A��u�ulato� – ACC............................................................................................................... ��

P�og�a� Counte� Low Registe� – PCL.................................................................................. ��

Look-up Ta�le Registe�s – TBLP� TBLH................................................................................ ��

Status Registe� – STATUS.................................................................................................... �7

EEPROM Data Memory.................................................................................. 29

EEPROM Data Me�o�y St�u�tu�e ........................................................................................ �9

EEPROM Registe�s .............................................................................................................. �9

Reading Data f�o� the EEPROM ........................................................................................ �1

W�iting Data to the EEPROM................................................................................................ �1

W�ite P�ote�tion..................................................................................................................... �1

EEPROM Inte��upt ................................................................................................................ �1

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

Oscillator ........................................................................................................ 33

Os�illato� Ove�view ............................................................................................................... ��

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

Inte�nal RC Os�illato� – HIRC ............................................................................................... �4

Inte�nal ��kHz Os�illato� – LIRC........................................................................................... �4

Supple�enta�y Os�illato�...................................................................................................... �4

Operating Modes and System Clocks ......................................................... 35

Syste� Clo�ks ...................................................................................................................... �5

Syste� Ope�ation Modes...................................................................................................... ��

Cont�ol Registe� .................................................................................................................... �7

Ope�ating Mode Swit�hing ................................................................................................... �9

Stand�y Cu��ent Conside�ations........................................................................................... 4�

Wake-up................................................................................................................................ 4�

Watchdog Timer............................................................................................. 44

Wat�hdog Ti�e� Clo�k Sou��e.............................................................................................. 44

Wat�hdog Ti�e� Cont�ol Registe� ......................................................................................... 44

Wat�hdog Ti�e� Ope�ation ................................................................................................... 45

Reset and Initialisation.................................................................................. 46

Reset Fun�tions .................................................................................................................... 4�

Reset Initial Conditions ......................................................................................................... 49

Input/Output Ports......................................................................................... 52

Pull-high Resisto�s ................................................................................................................ 5�

Po�t A Wake-up ..................................................................................................................... 5�

I/O Po�t Cont�ol Registe�s..................................................................................................... 5�

Pin-sha�ed Fun�tions ............................................................................................................ 54

I/O Pin St�u�tu�es.................................................................................................................. 55

P�og�a��ing Conside�ations................................................................................................ 5�

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