HT45F4830 datasheet(3/120 Pages) HOLTEK

3 / 120 page

Rev. 1.12

April 11, 2017

Rev. 1.12

April 11, 2017

HT45F4830

Digital Servo Flash MCU with Driver

HT45F4830

Digital Servo Flash MCU with Driver

Look-up Table Registers – TBLP, TBLH................................................................................ 26

Status Register – STATUS.................................................................................................... 27

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

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

EEPROM Registers .............................................................................................................. 29

Reading Data from the EEPROM ........................................................................................ 31

Writing Data to the EEPROM................................................................................................ 31

Write Protection..................................................................................................................... 31

EEPROM Interrupt ................................................................................................................ 31

Programming Considerations................................................................................................ 32

Oscillators ...................................................................................................... 33

Oscillator Overview ............................................................................................................... 33

System Clock Configurations................................................................................................ 33

High Speed Internal RC Oscillator – HIRC ........................................................................... 34

Internal 32kHz Oscillator – LIRC........................................................................................... 34

Operating Modes and System Clocks ......................................................... 34

System Clocks ...................................................................................................................... 34

System Operation Modes ..................................................................................................... 35

Control Register .................................................................................................................... 37

Operating Mode Switching ................................................................................................... 38

Standby Current Considerations .......................................................................................... 42

Wake-up ............................................................................................................................... 42

Watchdog Timer............................................................................................. 43

Watchdog Timer Clock Source.............................................................................................. 43

Watchdog Timer Control Register ......................................................................................... 43

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

Reset and Initialisation.................................................................................. 45

Reset Functions .................................................................................................................... 45

Reset Initial Conditions ......................................................................................................... 47

Input/Output Ports......................................................................................... 49

Pull-high Resistors ................................................................................................................ 49

Port A Wake-up ..................................................................................................................... 50

I/O Port Control Registers..................................................................................................... 50

Pin-shared Functions ............................................................................................................ 51

I/O Pin Structures.................................................................................................................. 52

Programming Considerations ............................................................................................... 52

Timer Module – TM ........................................................................................ 53

Introduction ........................................................................................................................... 53

TM Operation ........................................................................................................................ 53

TM Clock Source................................................................................................................... 54

TM Interrupts......................................................................................................................... 54

TM External Pins................................................................................................................... 54

TM Input/Output Pin Selection ............................................................................................. 54

Programming Considerations................................................................................................ 55

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