Analog-to-Digital ConverterDescriptionMN102H75K/F75K/85K/F85K LSI User Manual Panasonic Semiconductor Development Company143Panasonic6 Analog-to-Digital Converter6.1 DescriptionThe MN102H75K/85K contains an 8-bit charge redistribution A/D converter(ADC) that can process up to 12 channels. The reference clock is selectable toB OSC x 1/8 or 1/16. When B OSC is 24 MHz, you must set the reference clock toB OSC/8 (conversion rate = 4 μs) or higher.6.2 FeaturesFigure 6-1 ADC ArchitectureVDDADIN0ADIN1ADIN2ADIN3ADIN4ADIN5ADIN6ADIN7ADIN8ADIN9ADIN10ADIN11VSSSampleandhold8-bitsuccessive-approximationADCAN0BUFAN1BUFAN2BUFAN3BUFAN4BUFAN5BUFAN6BUFAN7BUFAN8BUFAN9BUFAN10BUFAN11BUFMUXTable 6-1 ADC Functions and FeaturesFunction/Feature DescriptionSample and hold EmbeddedConversion time 4 μs per channel (when BOSC = 24 MHz)Clock sources Programmable to BOSC divided by 8 or 16Operating modes 46 operating modes (four types) (1)• Single conversion of one input (channel 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or 11)• Single conversion of multiple inputs (channels 0–n, where n = 1–11)• Continuous conversion of one input (channel 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or 11)• Continuous conversion of multiple inputs (channels 0–n, where n = 1–11)Conversion start Timer 1 underflow or register settingInterrupts An interrupt is generated each time a single or continuous conversion sequence endsNote: 1. Channels correspond to the ADIN pin having the same number. For instance, channel 3 (or ch3) corresponds toADIN3.
