Data Channel Configuration

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Here, we examine the primary components of the data channel.

• Analog positive/negative input selection
  • Each data channel can select any available analog input for conversion, both positive (external or internal) and, if supported, negative for differential signals.
  • This is set using configuration bits.
• Sample mode and sample time
  • You can set each data channel to use single or accumulated sampling.
  • You can adjust how long the Analog-to-Digital Converter (ADC) samples the input before converting.
• Data channel conversion triggers
  • ADC conversions can start from the following, allowing precise timing control:
    • Software commands
    • Hardware events (like timers) or other peripherals
• Data channel result format
  • The data result format specifies how the converted digital data is presented.
  • Options may include different bit resolutions, signed or unsigned formats, and alignment within the result register.
• Result comparator
  • Each data channel can use a built-in digital comparator to automatically compare the conversion result against predefined threshold values.
  • If the result meets or exceeds these thresholds, the comparator can trigger specific actions:
    • Generating an interrupt
    • Flagging an event for further processing
• Interrupt generation
  • The ADC can generate interrupts for events such as conversion completion, comparator matches, or error conditions.
  • This interrupt capability enables a fast system response to ADC-related events.