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HT85F2280 Datasheet(PDF) 6 Page - Holtek Semiconductor Inc |
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HT85F2280 Datasheet(HTML) 6 Page - Holtek Semiconductor Inc |
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6 / 226 page  Rev. 1.00 6 of ��6 �a� 1�� �01� Standard 8051 8-Bit Flash MCU HT85F2260/HT85F2270/HT85F2280 30 Analog to Digital Converter – ADC ................................................................. 153 A/D Overview .................................................................................................................. 1�� A/D Converter Register Description ................................................................................ 1�4 A/D Converter Data Registers – ADRL� ADRH ............................................................... 1�4 A/D Converter Control Registers – ADCR0� ADCR1� ADCR�� ADPGA .......................... 1�4 A/D Operation.................................................................................................................. 1�8 A/D Converter Clock Source ........................................................................................... 1�9 A/D Input Pins ................................................................................................................. 1�9 Temperature Sensor........................................................................................................ 160 A/D Reference Voltage Source ....................................................................................... 160 Summar� of A/D Conversion Steps................................................................................. 161 A/D Conversion Timing.................................................................................................... 16� Programming Considerations.......................................................................................... 16� A/D Transfer Function ..................................................................................................... 16� 31 Digital to Analog Converter – DAC.................................................................. 164 DAC Register Description ............................................................................................... 164 DAC Operation................................................................................................................ 166 DAC Reference Voltage Source...................................................................................... 167 Programming Considerations.......................................................................................... 167 32 Voltage Reference Generator .......................................................................... 168 Voltage Reference Generator Operation......................................................................... 168 33 Comparators ..................................................................................................... 170 Comparator Operation..................................................................................................... 170 Comparator Registers ..................................................................................................... 171 Comparator Interrupt....................................................................................................... 176 Comparator Reset Function ............................................................................................ 176 Programming Considerations.......................................................................................... 176 34 I2C Serial Interface ............................................................................................ 177 I�C Interface Operation.................................................................................................... 177 I�C Registers ................................................................................................................... 178 I�C Bus Communication .................................................................................................. 18� I�C Bus Start Signal.................................................................................................................... 18� Slave Address............................................................................................................................. 18� I�C Bus Read/Write Signal.......................................................................................................... 18� I�C Bus Slave Address Acknowledge Signal .............................................................................. 18� I�C Bus Data and Acknowledge Signal....................................................................................... 184 I�C Status Codes ........................................................................................................................ 18� |
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