Analog Peripherals

  • Analog-to-Digital Converter with Computation and Context Saving:
    • Up to 43 external channels
    • Automated math functions on input signals:
      • Averaging, filter calculations, oversampling and threshold comparison
    • 4 Separate Contexts (settings and results) saved and accessible separately
    • Contexts can be accessed through firmware or DMA
    • Operates in Sleep
    • Five internal analog channels
    • Hardware Capacitive Voltage Divider (CVD) Support:
      • Adjustable sample and hold capacitor array
      • Guard ring digital output drive
      • Automates touch sampling and reduces software size and CPU usage when touch or proximity sensing is required
  • 8-Bit Digital-to-Analog Converter (DAC):
    • Buffered output available on two I/O pins
    • Internal connections to ADC and Comparators
  • Two Comparators (CMP):
    • Four external inputs
    • Configurable output polarity
    • External output via Peripheral Pin Select
  • Zero-Cross Detect (ZCD):
    • Detect when AC signal on pin crosses ground
  • Voltage Reference:
    • Fixed Voltage Reference with 1.024V, 2.048V and 4.096V output levels
    • Internal connections to ADC, Comparator and DAC