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HT48R068B Datasheet(PDF) 3 Page - Holtek Semiconductor Inc |
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HT48R068B Datasheet(HTML) 3 Page - Holtek Semiconductor Inc |
3 / 118 page Rev. 1.30 � �e���a�� 0�� �01� Rev. 1.30 3 �e���a�� 0�� �01� HT48R068B/HT48R069B Enhanced I/O 8-Bit OTP MCU HT48R068B/HT48R069B Enhanced I/O 8-Bit OTP MCU Oscillator ........................................................................................................ 32 S�stem Oscillato� Ove�view .................................................................................................. 3� Exte�nal C��stal/Resonato� Oscillato� – HXT........................................................................ 3� Exte�nal RC Oscillato� – ERC ............................................................................................... 33 Inte�nal RC Oscillato� – HIRC ............................................................................................... 34 Exte�nal 3�768Hz C��stal Oscillato� – LXT........................................................................... 34 LXT Oscillato� Low Powe� ��nction ...................................................................................... 3� Inte�nal Low Speed Oscillato� – LIRC................................................................................... 3� Operating Modes ........................................................................................... 36 Mode T�pes and Selection.................................................................................................... 36 Mode Switching..................................................................................................................... 37 Stand�� C���ent Conside�ations........................................................................................... 37 Wake-�p................................................................................................................................ 38 Watchdog Time� Ope�ation ................................................................................................... 39 Reset and Initialisation.................................................................................. 40 Reset ��nctions .................................................................................................................... 41 Reset Initial Conditions ......................................................................................................... 43 Input/Output Ports......................................................................................... 45 P�ll-high Resisto�s ................................................................................................................ 4� Po�t A Wake-�p ..................................................................................................................... 4� I/O Po�t Cont�ol Registe�s..................................................................................................... 47 Pin-sha�ed ��nctions ............................................................................................................ 48 Pin Remapping Configuration ............................................................................................... 49 I/O Pin St��ct��es.................................................................................................................. 49 P�og�amming Conside�ations................................................................................................ �1 Timer/Event Counters ................................................................................... 51 Configuring the Timer/Event Counter Input Clock Source .................................................... �1 Time� Registe�s – TMR0� TMR1� TMR�L� TMR�H ............................................................... �� Time� Cont�ol Registe�s – TMR0C� TMR1C� TMR�C ........................................................... �� Time� Mode ........................................................................................................................... �6 Event Co�nte� Mode ............................................................................................................. �6 P�lse Width Capt��e Mode ................................................................................................... �7 P�escale�............................................................................................................................... �8 P�D ��nction ........................................................................................................................ �8 I/O Inte�facing........................................................................................................................ �9 P�og�amming Conside�ations................................................................................................ �9 Time� P�og�am Example ....................................................................................................... 60 Time Base ............................................................................................................................. 60 Pulse Width Modulator.................................................................................. 61 PWM Ope�ation..................................................................................................................... 6� 6+� PWM Mode .................................................................................................................... 6� 7+1 PWM Mode .................................................................................................................... 63 PWM O�tp�t Cont�ol............................................................................................................. 64 |
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Similar Description - HT48R068B_15 |
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