HT45F65 datasheet(3/231 Pages) HOLTEK

3 / 231 page

Rev. 1.60

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Rev. 1.60

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HT45F65/HT45F66/HT45F67

Glucose Meter 8-Bit Flash MCU

Special Function Register Description........................................................ 40

Indi�ect Add�essing Registe�s – IAR0� IAR1 ........................................................................ �0

Me�o�y Pointe�s – MP0� MP1 ............................................................................................. �0

Bank Pointe� – BP ................................................................................................................ �1

Accu�ulato� – ACC .............................................................................................................. ��

P�og�a� Counte� Low Registe� – PCL ................................................................................. ��

Look-up Ta�le Registe�s – TBLP� TBHP� TBLH .................................................................... ��

Status Registe� – STATUS.................................................................................................... �3

Oscillator ........................................................................................................ 44

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

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

Exte�nal C�ystal/Ce�a�ic Oscillato� – HXT ........................................................................... ��

Exte�nal RC Oscillato� – ERC (HT��F66/HT��F67)............................................................. �6

Inte�nal RC Oscillato� – HIRC ............................................................................................... �6

Exte�nal 3�.768kHz C�ystal Oscillato� – LXT........................................................................ �6

LXT Oscillato� Low Powe� Function ..................................................................................... �7

Inte�nal 3�kHz Oscillato� – LIRC .......................................................................................... �8

Supple�enta�y Oscillato�s ................................................................................................... �8

Operating Modes and System Clocks ......................................................... 48

Syste� Clocks ...................................................................................................................... �8

Syste� Ope�ation Modes ..................................................................................................... �0

Cont�ol Registe� .................................................................................................................... �1

Fast Wake-up........................................................................................................................ ��

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

Stand�y Cu��ent Conside�ations .......................................................................................... �7

Wake-up................................................................................................................................ �7

P�og�a��ing Conside�ations ............................................................................................... �8

Syste� Clock Output ............................................................................................................ �8

Watchdog Timer............................................................................................. 59

Watchdog Ti�e� Clock Sou�ce.............................................................................................. �9

Watchdog Ti�e� Cont�ol Registe� ......................................................................................... �9

Watchdog Ti�e� Ope�ation ................................................................................................... 60

Reset and Initialisation ................................................................................. 61

Reset Functions ................................................................................................................... 61

Reset Initial Conditions ......................................................................................................... 6�

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

Pull-high Resisto�s ................................................................................................................ 7�

Po�t A Wake-up ..................................................................................................................... 77

I/O Po�t Cont�ol Registe�s..................................................................................................... 77

Pin-�e�apping Functions ..................................................................................................... 79

Pin-�e�apping Registe�s....................................................................................................... 79

I/O Pin St�uctu�es.................................................................................................................. 90

P�og�a��ing Conside�ations ............................................................................................... 90

HT45F65 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc

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