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HT48R069B Datasheet(PDF) 3 Page - Holtek Semiconductor Inc |
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HT48R069B Datasheet(HTML) 3 Page - Holtek Semiconductor Inc |
3 / 121 page HT48R068B/HT48R069B Enhanced I/O Type 8-bit OTP MCU P�elimina�� HT48R068B/HT48R069B Enhanced I/O Type 8-bit OTP MCU P�elimina�� Rev 1.00 ii �e���a�� 1�� �011 Rev 1.00 iii �e���a�� 1�� �011 Exte�nal C��stal/Resonato� Oscillato� – HXT.....................................................................�7 Exte�nal RC Oscillato� – ERC ............................................................................................�8 Inte�nal RC Oscillato� – HIRC ............................................................................................�9 Exte�nal 3�768Hz C��stal Oscillato� – LXT........................................................................�9 LXT Oscillato� Low Powe� ��nction ...................................................................................30 Inte�nal Low Speed Oscillato� – LIRC................................................................................30 Operating Modes ......................................................................................................... 31 Mode T�pes and Selection.................................................................................................31 Mode Switching..................................................................................................................3� Stand�� C���ent Conside�ations........................................................................................3� Wake-�p.............................................................................................................................33 Watchdog Time� Ope�ation ................................................................................................3� Reset and Initialisation ............................................................................................... 35 Reset ��nctions .................................................................................................................36 Reset Initial Conditions ......................................................................................................38 Input/Output Ports....................................................................................................... 40 P�ll-high Resisto�s .............................................................................................................�0 Po�t A Wake-�p ..................................................................................................................�0 I/O Po�t Cont�ol Registe�s..................................................................................................�� Pin-sha�ed ��nctions .........................................................................................................�3 Pin Remapping Configuration ............................................................................................�� I/O Pin St��ct��es...............................................................................................................�� P�og�amming Conside�ations.............................................................................................�6 Timer/Event Counters ................................................................................................. 46 Configuring the Timer/Event Counter Input Clock Source .................................................�6 Time� Registe�s – TMR0� TMR1� TMR�L� TMR�H ............................................................�7 Time� Cont�ol Registe�s – TMR0C� TMR1C� TMR�C ........................................................�7 Time� Mode ........................................................................................................................51 Event Co�nte� Mode ..........................................................................................................51 P�lse Width Capt��e Mode ................................................................................................5� P�escale�............................................................................................................................53 P�D ��nction .....................................................................................................................53 I/O Inte�facing.....................................................................................................................5� P�og�amming Conside�ations.............................................................................................5� Time� P�og�am Example ....................................................................................................55 Time Base ..........................................................................................................................55 Pulse Width Modulator ............................................................................................... 56 PWM Ope�ation..................................................................................................................57 6+� PWM Mode .................................................................................................................57 7+1 PWM Mode .................................................................................................................58 PWM O�tp�t Cont�ol..........................................................................................................59 Interrupts...................................................................................................................... 59 Inte���pt Registe� ...............................................................................................................60 Inte���pt Ope�ation.............................................................................................................6� |
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