HT67F370 datasheet(3/225 Pages) HOLTEK

3 / 225 page

Rev. 1.00

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HT67F370

TinyPowerTM A/D Flash MCU with LCD & EEPROM

HT67F370

TinyPowerTM A/D Flash MCU with LCD & EEPROM

P�og�am Co�nte� Low Registe� – PCL.................................................................................. 43

Look-�p Table Registe�s – TBLP� TBHP� TBLH..................................................................... 43

Stat�s Registe� – STATUS.................................................................................................... 44

EEPROM Data Memory.................................................................................. 46

EEPROM Data Memo�� St��ct��e ........................................................................................ 4�

EEPROM Registe�s .............................................................................................................. 4�

Reading Data f�om the EEPROM ......................................................................................... 4�

W�iting Data to the EEPROM................................................................................................ 48

W�ite P�otection..................................................................................................................... 48

EEPROM Inte��pt ................................................................................................................ 48

P�og�amming Conside�ations................................................................................................ 49

Oscillators ...................................................................................................... 50

Oscillato� Ove�view ............................................................................................................... 50

System Clock Configurations................................................................................................ 50

Exte�nal C��stal/Ce�amic Oscillato� – HXT ........................................................................... 51

Inte�nal High Speed RC Oscillato� – HIRC ........................................................................... 5�

Exte�nal 3�.��8kHz C��stal Oscillato� – LXT........................................................................ 5�

Inte�nal 3�kHz Oscillato� – LIRC........................................................................................... 53

Operating Modes and System Clocks ......................................................... 54

S�stem Clocks ...................................................................................................................... 54

S�stem Ope�ation Modes...................................................................................................... 55

Cont�ol Registe�s .................................................................................................................. 5�

Ope�ating Mode Switching.................................................................................................... 59

Standb� C��ent Conside�ations........................................................................................... �3

Wake-�p ............................................................................................................................... �3

Watchdog Timer............................................................................................. 64

Watchdog Time� Clock So��ce.............................................................................................. �4

Watchdog Time� Cont�ol Registe� ......................................................................................... �4

Watchdog Time� Ope�ation ................................................................................................... �5

Reset and Initialisation.................................................................................. 66

Reset F�nctions .................................................................................................................... ��

Reset Initial Conditions ......................................................................................................... �0

Input/Output Ports......................................................................................... 74

P�ll-high Resisto�s ................................................................................................................ �5

Po�t A Wake-�p ..................................................................................................................... �5

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

Pin-sha�ed F�nctions ............................................................................................................ ��

I/O Pin St��ct��es.................................................................................................................. 83

P�og�amming Conside�ations................................................................................................ 84

Timer Modules – TM ...................................................................................... 85

Int�od�ction ........................................................................................................................... 85

TM Ope�ation ........................................................................................................................ 85

TM Clock So��ce................................................................................................................... 8�

TM Inte��pts......................................................................................................................... 8�

HT67F370 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc

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