HT67F5652 datasheet(3/224 Pages) HOLTEK

3 / 224 page

Rev. 1.00

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HT67F5652

24-Bit Delta Sigma A/D + LCD Flash MCU

HT67F5652

24-Bit Delta Sigma A/D + LCD Flash MCU

EEPROM Data Memory.................................................................................. 43

EEPROM Data Me�o�y St�u�tu�e ........................................................................................ 43

EEPROM Registe�s .............................................................................................................. 43

Reading Data f�o� the EEPROM ......................................................................................... 45

W�iting Data to the EEPROM................................................................................................ 45

W�ite P�ote�tion..................................................................................................................... 45

EEPROM Inte��upt ................................................................................................................ 45

P�og�a��ing Conside�ations................................................................................................ 4�

Oscillators ...................................................................................................... 47

Os�illato� Ove�view .............................................................................................................. 4�

System Clock Configurations................................................................................................ 4�

Exte�nal C�ystal/Ce�a�i� Os�illato� – HXT .......................................................................... 48

Inte�nal RC Os�illato� – HIRC ............................................................................................... 49

Inte�nal 3�kHz Os�illato� – LIRC .......................................................................................... 49

Exte�nal 3�.��8kHz C�ystal Os�illato� – LXT ....................................................................... 49

Supple�enta�y Os�illato�s ................................................................................................... 50

Operating Modes and System Clocks ......................................................... 51

Syste� Clo�ks ...................................................................................................................... 51

Syste� Ope�ation Modes ..................................................................................................... 53

Cont�ol Registe� .................................................................................................................... 54

Fast Wake-up........................................................................................................................ 5�

Ope�ating Mode Swit�hing.................................................................................................... 5�

Stand�y Cu��ent Conside�ations .......................................................................................... �1

Wake-up ............................................................................................................................... �1

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

Watchdog Timer............................................................................................. 63

Wat�hdog Ti�e� Clo�k Sou��e.............................................................................................. �3

Wat�hdog Ti�e� Cont�ol Registe� ......................................................................................... �3

Wat�hdog Ti�e� Ope�ation ................................................................................................... �4

Reset and Initialisation ................................................................................. 66

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

Reset Initial Conditions ........................................................................................................ �8

Input/Output Ports ........................................................................................ 72

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

Po�t A Wake-up ..................................................................................................................... �3

I/O Po�t Cont�ol Registe�s..................................................................................................... �4

I/O Pin St�u�tu�es.................................................................................................................. �5

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

Timer Modules – TM ...................................................................................... 76

Int�odu�tion ........................................................................................................................... ��

TM Ope�ation ........................................................................................................................ ��

TM Clo�k Sou��e................................................................................................................... ��

TM Inte��upts......................................................................................................................... ��

TM Exte�nal Pins .................................................................................................................. ��

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