HT45FM30 datasheet(3/188 Pages) HOLTEK

3 / 188 page

Rev. 1.20

De�e��e� 1�� 201�

Rev. 1.20

De�e��e� 1�� 201�

HT45FM30

Brushless DC Motor Flash MCU

EEPROM Data Memory................................................................................... 28

EEPROM Data Me�o�y St�u�tu�e ......................................................................................... 28

EEPROM Cont�ol Registe�s................................................................................................... 28

Reading Data f�o� the EEPROM .......................................................................................... 30

W�iting Data to the EEPROM................................................................................................. 30

W�ite P�ote�tion...................................................................................................................... 30

EEPROM Inte��upt ................................................................................................................. 30

P�og�a��ing Conside�ations................................................................................................. 31

P�og�a��ing Exa�ples......................................................................................................... 31

Oscillator ......................................................................................................... 32

Syste� Os�illato� Ove�view ................................................................................................... 32

System Clock Configurations................................................................................................. 32

Operating Modes ............................................................................................ 34

Syste� Ope�ation Modes....................................................................................................... 34

Cont�ol Registe� ..................................................................................................................... 35

Os�illato� Wake-up Ti�e ........................................................................................................ 3�

Ope�ating Mode Swit�hing and Wake-up............................................................................... 37

NORMAL Mode to SLOW Mode Swit�hing............................................................................ 37

SLOW Mode to NORMAL Mode Swit�hing............................................................................ 39

Ente�ing the SLEEP Mode ..................................................................................................... 39

Ente�ing the IDLE0 Mode....................................................................................................... 39

Ente�ing the IDLE1 Mode....................................................................................................... 39

Stand�y Cu��ent Conside�ations............................................................................................ 40

Wake-up................................................................................................................................. 40

Watchdog Timer.............................................................................................. 41

Wat�hdog Ti�e� Clo�k Sou��e............................................................................................... 41

Wat�hdog Ti�e� Cont�ol Registe� .......................................................................................... 41

Wat�hdog Ti�e� Ope�ation .................................................................................................... 42

Reset and Initialisation................................................................................... 43

Reset Fun�tions ..................................................................................................................... 43

Reset Initial Conditions .......................................................................................................... 44

Input/Output Ports.......................................................................................... 47

Pin-sha�ed p�io�ity.................................................................................................................. 48

Pull-high Resisto�s ................................................................................................................. 48

Po�t A Wake-up ...................................................................................................................... 49

I/O Po�t Cont�ol Registe�s...................................................................................................... 50

Pin-�e�apping Fun�tions ....................................................................................................... 51

Pin-�e�apping Registe�s........................................................................................................ 51

I/O Pin St�u�tu�es................................................................................................................... 53

P�og�a��ing Conside�ations................................................................................................. 54

HT45FM30 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc

HT45FM30 Datasheet(HTML) 3 Page - Holtek Semiconductor Inc

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