36.6 Functional Description

The use of the SLCDC comprises three phases of functionality: initialization sequence, display phase, and disable sequence.

  • Initialization sequence:
  1. Select the LCD supply source in the SUPC:
    • Internal or External
  2. Select the clock division (SLCDC_FRR) to use a proper frame rate.
  3. Enter the number of common and segments terminals (SLCDC_MR).
  4. Select the bias in compliance with the LCD manufacturer datasheet (SLCDC_MR).
  5. Enter buffer driving time (SLCDC_MR).
  6. Define the segments remapping pattern if required (SLCDC_SMR0).
  • During the display phase:
  1. Data may be written at any time in the SLCDC memory. The data is automatically latched and displayed at the next LCD frame.
  2. It is possible to:
    • Adjust the contrast
      • in the SUPC, only if internal LCD supply is used, or
      • via external VDDLCD pin, otherwise
    • Adjust the frame frequency
    • Adjust buffer driving time
    • Reduce the SLCDC consumption by entering in low-power waveform at any time
    • Use the large set of display features such as blinking, inverted blink, etc.