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Rev. 1.20
2
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Rev. 1.20
3
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HT69F30A/HT69F40A/HT69F50A
TinyPower
TM
I/O Flash 8-Bit MCU with LCD & EEPROM
HT69F30A/HT69F40A/HT69F50A
TinyPower
TM
I/O Flash 8-Bit MCU with LCD & EEPROM
EEPR�M Registe�s .............................................................................................................. 4�
Reading Data f�om the EEPR�M ......................................................................................... �0
W�iting Data to the EEPR�M ................................................................................................ �0
W�ite P�ote�tion ..................................................................................................................... �0
EEPR�M Inte��upt ................................................................................................................ �0
P�og�amming Conside�ations ................................................................................................ �1
................................................................................................ �2
Exte�nal C�ystal/Ce�ami� �s�illato� – HXT ........................................................................... �3
Exte�nal RC �s�illato� – ERC ............................................................................................... �4
Inte�nal RC �s�illato� – HIRC ............................................................................................... �4
Exte�nal 32.76�kHz C�ystal �s�illato� – LXT ........................................................................ ��
LXT �s�illato� Low Powe� Fun�tion ...................................................................................... �6
Inte�nal 32kHz �s�illato� – LIRC ........................................................................................... �6
Exte�nal Clo�k – EC .............................................................................................................. �6
Supplementa�y �s�illato�s .................................................................................................... �6
Operating Modes and System Clocks ......................................................... 57
System Clo�k ........................................................................................................................ �7
System �pe�ation Modes ...................................................................................................... ��
Cont�ol Registe� .................................................................................................................... �9
Fast Wake-up ........................................................................................................................ 61
�pe�ating Mode Swit�hing .................................................................................................... 61
�pe�ating Mode Swit�hing and Wake-up .............................................................................. 62
N�RMAL Mode to SL�W Mode Swit�hing ........................................................................... 63
SL�W Mode to N�RMAL Mode Swit�hing ........................................................................... 64
Ente�ing the SLEEP0 Mode .................................................................................................. 6�
Ente�ing the SLEEP1 Mode .................................................................................................. 6�
Ente�ing the IDLE0 Mode ...................................................................................................... 6�
Ente�ing the IDLE1 Mode ...................................................................................................... 66
Stand�y Cu��ent Conside�ations ........................................................................................... 66
Wake-up ................................................................................................................................ 67
P�og�amming Conside�ations ................................................................................................ 67
Wat�hdog Time� Clo�k Sou��e .............................................................................................. 6�
Wat�hdog Time� Cont�ol Registe� ......................................................................................... 6�
Wat�hdog Time� �pe�ation ................................................................................................... 69
Reset Fun�tions .................................................................................................................... 71
Reset Initial Conditions ......................................................................................................... 74