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HT45F23A Datasheet(PDF) 4 Page - Holtek Semiconductor Inc |
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HT45F23A Datasheet(HTML) 4 Page - Holtek Semiconductor Inc |
4 / 148 page Rev. 1.00 4 ���� 0�� �01� Rev. 1.00 5 ���� 0�� �01� HT45F23A 8-Bit Flash MCU with Op Amps & Comparators HT45F23A 8-Bit Flash MCU with Op Amps & Comparators Port B NMOS Open Drain Contro� Register .......................................................................... 59 I/O Pin Str�ct�res.................................................................................................................. 59 Programming Considerations................................................................................................ 59 Timer/Event Counters ................................................................................... 60 Configuring the Timer/Event Counter Input Clock Source .................................................... 61 Timer Registers – TMR0� TMR1L� TMR1H ........................................................................... 61 Timer Contro� Registers – TMR0C� TMR1C.......................................................................... 6� Configuring the Timer Mode.................................................................................................. 6� Configuring the Event Counter Mode.................................................................................... 6� Configuring the Pulse Width Measurement Mode................................................................. 64 Programmab�e Freq�enc� Divider PFD ................................................................................ 65 Presca�er ............................................................................................................................... 66 I/O Interfacing........................................................................................................................ 67 Timer/Event Co�nter Pins Interna� Fi�ter ............................................................................... 68 Programming Considerations................................................................................................ 68 Timer Program Examp�e ....................................................................................................... 69 Pulse Width Modulator.................................................................................. 70 PWM Operation..................................................................................................................... 70 6+� PWM Mode .................................................................................................................... 71 7+1 PWM Mode .................................................................................................................... 7� PWM O�tp�t Contro� ............................................................................................................. 7� Analog to Digital Converter .......................................................................... 73 A/D Overview ........................................................................................................................ 7� A/D Converter Register Description ...................................................................................... 7� A/D Converter Data Registers – ADRL� ADRH ..................................................................... 74 A/D Converter Contro� Registers – ADCR� ACSR� ADPCR .................................................. 74 A/D Operation ....................................................................................................................... 77 A/D Inp�t Pins ....................................................................................................................... 78 S�mmar� of A/D Conversion Steps....................................................................................... 78 Programming Considerations................................................................................................ 79 A/D Transfer F�nction ........................................................................................................... 79 A/D Programming Examp�e................................................................................................... 81 Serial Interface Module – SIM ....................................................................... 83 SPI Interface ......................................................................................................................... 8� SPI Registers ........................................................................................................................ 84 SPI Comm�nication .............................................................................................................. 87 I�C Interface .......................................................................................................................... 89 I�C Registers ......................................................................................................................... 89 I�C B�s Comm�nication ........................................................................................................ 9� I�C B�s Start Signa�............................................................................................................... 94 S�ave Address ....................................................................................................................... 94 I�C B�s Read/Write Signa� .................................................................................................... 95 I�C B�s S�ave Address Acknow�edge Signa� ......................................................................... 95 I�C B�s Data and Acknow�edge Signa� ................................................................................. 95 |
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