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HT56R642 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc |
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HT56R642 Datasheet(HTML) 3 Page - Holtek Semiconductor Inc |
3 / 145 page Rev. 1.30 � �a��� �� �013 Rev. 1.30 3 �a��� �� �013 HT56R62/HT56R65 HT56R642/HT56R644/HT56R654/HT56R656 TinyPowerTM A/D Type with LCD 8-Bit OTP MCU HT56R62/HT56R65 HT56R642/HT56R644/HT56R654/HT56R656 TinyPowerTM A/D Type with LCD 8-Bit OTP MCU Se�ial Inte�fa�e Registe�s...................................................................................................... 37 Port A Wake-up Register − PAWU ........................................................................................ 37 Pull-High Resistors − PAPU, PBPU, PDPU .......................................................................... 37 Register − CLKMOD ............................................................................................................. 37 LCD/LED Registe�s – LCDCTRL� LEDCTRL� LCDOUT1� LCDOUT� .................................. 37 Miscellaneous Register − MISC............................................................................................ 37 Input/Output Ports ......................................................................................... 38 Pull-�ig� Resisto�s ................................................................................................................ 38 Po�t A Wake-up ..................................................................................................................... 38 Po�t A Open D�ain Fun�tion .................................................................................................. 38 I/O Po�t Cont�ol Registe�s ..................................................................................................... 39 Pin-s�a�ed Fun�tions ............................................................................................................ 39 I/O Pin St�u�tu�es.................................................................................................................. 40 P�og�amming Conside�ations................................................................................................ 41 LCD and LED Driver ...................................................................................... 42 Display �emo�y .................................................................................................................... 45 LCD/LED Registe�s............................................................................................................... 4� LCD Reset Fun�tion.............................................................................................................. 49 Clo�k Sou��e......................................................................................................................... 49 LCD D�ive� Output................................................................................................................. 49 LED D�ive� Output................................................................................................................. 50 LCD Voltage Sou��e and Biasing.......................................................................................... 50 P�og�amming Conside�ations................................................................................................ 51 Timer/Event Counters ................................................................................... 58 Configuring the Timer/Event Counter Input Clock Source .................................................... 58 Timer Registers − TMR0, TMR1, TMR1L/TMR1H, TMR2..................................................... 59 Timer Control Registers − TMR0C, TMR1C, TMR2C ........................................................... �0 Configuring the Timer Mode.................................................................................................. �� Configuring the Event Counter Mode.................................................................................... �3 Configuring the Pulse Width Measurement Mode................................................................. �4 Programmable Frequency Divider − PFD ............................................................................. �5 P�es�ale� ............................................................................................................................... �5 I/O Inte�fa�ing........................................................................................................................ �5 Time�/Event Counte� Pins Inte�nal Filte� ............................................................................... �� P�og�amming Conside�ations................................................................................................ �� Time� P�og�am Example ....................................................................................................... �7 Pulse Width Modulator.................................................................................. 68 PW� Ove�view ..................................................................................................................... �8 8+4 PW� �ode �odulation.................................................................................................. �9 PW� Output Cont�ol ............................................................................................................. �9 PW� P�og�amming Example................................................................................................ 70 |
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