Holtek BS67F340 Manual page 3

BS67F340/BS67F350/BS67F360/BS67F370
Enhanced Touch A/D Flash MCU with LCD Driver
Special Function Register Description ............................................................ 69
Indirect Addressing Registers − IAR0, IAR1, IAR2 ....................................................................�9
Memory Pointers − MP0, MP1H/MP1L, MP2H/MP2L ................................................................�9
P�og�a� Me�o�y Bank Pointe� - PBP .......................................................................................71
Accumulator − ACC ....................................................................................................................71
Program Counter Low Register − PCL .......................................................................................71
Look-up Table Registers - TBLP, TBHP, TBLH ..........................................................................7�
Status Register − STATUS .........................................................................................................7�
EEPROM Data Memory ...................................................................................... 74
EEPROM Data Me�o�y St�u�tu�e .............................................................................................74
EEPROM Registe�s ...................................................................................................................74
Reading Data f�o� the EEPROM ..............................................................................................7�
W�iting Data to the EEPROM .....................................................................................................7�
W�ite P�ote�tion ..........................................................................................................................7�
EEPROM Inte��upt .....................................................................................................................7�
P�og�a��ing Conside�ations .....................................................................................................77
Oscillators .......................................................................................................... 78
Os�illato� Ove�view ....................................................................................................................78
System Clock Configurations .....................................................................................................78
External Crystal/Ceramic Oscillator − HXT ................................................................................79
Internal High Speed RC Oscillator − HIRC ................................................................................80
External 32.768 kHz Crystal Oscillator − LXT ............................................................................80
Internal 32kHz Oscillator − LIRC ................................................................................................81
Operating Modes and System Clocks ............................................................. 82
Syste� Clo�ks ...........................................................................................................................8�
Syste� Ope�ation Modes ...........................................................................................................83
Cont�ol Registe�s .......................................................................................................................84
Ope�ating Mode Swit�hing .........................................................................................................87
Stand�y Cu��ent Conside�ations ................................................................................................91
Wake-up .....................................................................................................................................91
Watchdog Timer ................................................................................................. 92
Wat�hdog Ti�e� Clo�k Sou��e ...................................................................................................9�
Wat�hdog Ti�e� Cont�ol Registe� ..............................................................................................9�
Wat�hdog Ti�e� Ope�ation ........................................................................................................93
Reset and Initialisation ...................................................................................... 94
Reset Fun�tions .........................................................................................................................94
Reset Initial Conditions ..............................................................................................................98
Rev. 1.40 3 De�e��e� 1�� �01�