HT68F001 datasheet(3/55 Pages) HOLTEK

3 / 55 page

Rev. 1.01

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Rev. 1.01

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HT68F001

Cost-Effective Flash MCU

HT68F001

Cost-Effective Flash MCU

Oscillators ...................................................................................................... 22

�s�illato� �ve�view ............................................................................................................... ��

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

Inte�nal 3�kHz �s�illato� – LIRC .......................................................................................... ��

Operating Modes and System Clocks ........................................................ 23

System Clo�ks ..................................................................................................................... �3

System �pe�ation Modes...................................................................................................... �3

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

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

Watchdog Timer............................................................................................. 25

Wat�hdog Time� Clo�k Sou��e.............................................................................................. �5

Wat�hdog Time� Cont�ol Registe� ......................................................................................... �5

Wat�hdog Time� �pe�ation ................................................................................................... �6

Reset and Initialisation.................................................................................. 28

Reset Fun�tions .................................................................................................................... �8

Reset Initial Conditions ........................................................................................................ �9

Input/Output Ports ........................................................................................ 30

Pull-high Resisto�s ................................................................................................................ 30

Po�t A Wake-up ..................................................................................................................... 30

I/� Po�t Cont�ol Registe�s..................................................................................................... 31

I/� Pin St�u�tu�es.................................................................................................................. 31

P�og�amming Conside�ations ............................................................................................... 3�

Timer/Event Counter ..................................................................................... 33

Time�/Event Counte� Registe�s – TMR� TMRC..................................................................... 33

Time� Mode ........................................................................................................................... 35

Event Counte� Mode ............................................................................................................. 35

Pulse Width Measu�ement Mode.......................................................................................... 35

Interrupts........................................................................................................ 36

Inte��upt Registe�s................................................................................................................. 36

Inte��upt �pe�ation................................................................................................................ 3�

Time Base Inte��upt............................................................................................................... 38

Inte��upt Wake-up Fun�tion................................................................................................... 38

P�og�amming Conside�ations................................................................................................ 39

Application Circuits....................................................................................... 39

Instruction Set................................................................................................ 40

Int�odu�tion ........................................................................................................................... 40

Inst�u�tion Timing.................................................................................................................. 40

Moving and T�ansfe��ing Data............................................................................................... 40

A�ithmeti� �pe�ations............................................................................................................ 40

Logi�al and Rotate �pe�ation ............................................................................................... 41

B�an�hes and Cont�ol T�ansfe� ............................................................................................. 41

Bit �pe�ations ....................................................................................................................... 41

Ta�le Read �pe�ations ......................................................................................................... 41

�the� �pe�ations................................................................................................................... 41

HT68F001 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc

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