HT68F006 datasheet(3/93 Pages) HOLTEK

3 / 93 page

Rev. 1.00

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Rev. 1.00

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HT68F005/HT68F006

Enhanced I/O Flash Type MCU

HT68F005/HT68F006

Enhanced I/O Flash Type MCU

EEPROM Data Memory.................................................................................. 25

EEPR�M Data Memo�y St�u�tu�e ........................................................................................ �5

EEPR�M Registe�s .............................................................................................................. �5

Reading Data f�om the EEPR�M ......................................................................................... �7

W�iting Data to the EEPR�M................................................................................................ �7

W�ite P�ote�tion..................................................................................................................... �7

EEPR�M Inte��upt ................................................................................................................ �7

P�og�amming Conside�ations................................................................................................ �7

P�og�amming Examples........................................................................................................ �8

Oscillator ........................................................................................................ 29

�s�illato� �ve�view ............................................................................................................... �9

System Clock Configurations................................................................................................ �9

Exte�nal C�ystal/Ce�ami� �s�illato� – HXT ........................................................................... �9

High Speed Inte�nal RC �s�illato� – HIRC ........................................................................... 30

Inte�nal 3�kHz �s�illato� – LIRC........................................................................................... 30

Supplementa�y �s�illato�...................................................................................................... 30

Operating Modes and System Clocks ......................................................... 31

System Clo�ks ...................................................................................................................... 31

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

Cont�ol Registe� .................................................................................................................... 33

Fast Wake-up........................................................................................................................ 34

�pe�ating Mode Swit�hing and Wake-up.............................................................................. 35

N�RMAL Mode to SL�W Mode Swit�hing........................................................................... 36

SL�W Mode to N�RMAL Mode Swit�hing........................................................................... 37

Ente�ing the SLEEP0 Mode .................................................................................................. 37

Ente�ing the SLEEP1 Mode .................................................................................................. 38

Ente�ing the IDLE0 Mode...................................................................................................... 38

Ente�ing the IDLE1 Mode...................................................................................................... 38

Stand�y Cu��ent Conside�ations........................................................................................... 39

Wake-up................................................................................................................................ 39

P�og�amming Conside�ations................................................................................................ 40

Watchdog Timer............................................................................................. 40

Wat�hdog Time� Clo�k Sou��e.............................................................................................. 40

Wat�hdog Time� Cont�ol Registe� ......................................................................................... 40

Wat�hdog Time� �pe�ation ................................................................................................... 4�

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

Reset �ve�view..................................................................................................................... 43

Reset Fun�tions .................................................................................................................... 44

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

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