HT66F019 datasheet(3/175 Pages) HOLTEK

3 / 175 page

Rev. 1.00

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De�e��e� 01� �01�

Rev. 1.00

De�e��e� 01� �01�

HT66F019

A/D Flash MCU with EEPROM

HT66F019

A/D Flash MCU with EEPROM

Spe�ial Pu�pose Data Me�o�y ............................................................................................. �6

Special Function Register Description........................................................ 28

Indi�e�t Add�essing Registe� – IAR0� IAR1 ........................................................................... �8

Me�o�y Pointe�s – MP0� MP1 .............................................................................................. �8

Bank Pointe� – BP................................................................................................................. �9

A��u�ulato� – ACC............................................................................................................... �9

P�og�a� Counte� Low Registe� – PCL.................................................................................. �9

Look-up Ta�le Registe�s – TBLP� TBHP� TBLH..................................................................... �9

Status Registe� – STATUS.................................................................................................... 30

EEPROM Data Memory.................................................................................. 32

EEPROM Data Me�o�y St�u�tu�e ........................................................................................ 3�

EEPROM Registe�s .............................................................................................................. 3�

Reading Data f�o� the EEPROM ......................................................................................... 34

W�iting Data to the EEPROM................................................................................................ 34

W�ite P�ote�tion..................................................................................................................... 34

EEPROM Inte��upt ................................................................................................................ 34

P�og�a��ing Conside�ations................................................................................................ 35

Oscillators ...................................................................................................... 36

Os�illato� Ove�view ............................................................................................................... 36

System Clock Configurations................................................................................................ 36

Exte�nal C�ystal/Ce�a�i� Os�illato� – HXT ........................................................................... 3�

Inte�nal RC Os�illato� – HIRC ............................................................................................... 38

Exte�nal 3�.�68kHz C�ystal Os�illato� – LXT........................................................................ 38

Inte�nal 3�kHz Os�illato� – LIRC........................................................................................... 39

Supple�enta�y Os�illato�s .................................................................................................... 39

Operating Modes and System Clocks ......................................................... 40

Syste� Clo�ks ...................................................................................................................... 40

Syste� Ope�ation Modes...................................................................................................... 41

Cont�ol Registe�s .................................................................................................................. 4�

Fast Wake-up ....................................................................................................................... 43

Ope�ating Mode Swit�hing.................................................................................................... 44

Stand�y Cu��ent Conside�ations........................................................................................... 48

Wake-up................................................................................................................................ 48

P�og�a��ing Conside�ations................................................................................................ 49

Watchdog Timer............................................................................................. 50

Wat�hdog Ti�e� Clo�k Sou��e.............................................................................................. 50

Wat�hdog Ti�e� Cont�ol Registe� ......................................................................................... 50

Wat�hdog Ti�e� Ope�ation ................................................................................................... 51

Reset and Initialisation.................................................................................. 52

Reset Fun�tions .................................................................................................................... 5�

Reset Initial Conditions ........................................................................................................ 54

Input/Output Ports......................................................................................... 57

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

Po�t A Wake-up ..................................................................................................................... 58

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