SLAAEO3 September   2024 MSPM0L1227 , MSPM0L1227-Q1 , MSPM0L1228 , MSPM0L1228-Q1 , MSPM0L2227 , MSPM0L2227-Q1 , MSPM0L2228 , MSPM0L2228-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction: MSPM0 and LCD End Applications
  5. 2MSPM0 LCD Portfolio
  6. 3Segmented LCD Operation
    1. 3.1 LCD Structure (Simplified)
    2. 3.2 LCD Drive Basics
  7. 4MSPM0 LCD Features
    1. 4.1 Muxing
      1. 4.1.1 Muxing Example
    2. 4.2 Voltage Generation
      1. 4.2.1 Charge Pump
      2. 4.2.2 Contrast Control
    3. 4.3 LCD Clocking
    4. 4.4 LCD Memory and Blinking Mode
      1. 4.4.1 LCD Memory Organization
      2. 4.4.2 Blinking
    5. 4.5 LCD Output Pin Configuration
    6. 4.6 Low Power Mode Feature
  8. 5LCD Layout and Software Considerations
    1. 5.1 LCD Layout Tips
      1. 5.1.1 Hardware-Driven Layout
      2. 5.1.2 Software-Driven Layout
      3. 5.1.3 General Layout Rules
    2. 5.2 LCD Software Tips
      1. 5.2.1 Create a Look-up Table
      2. 5.2.2 Use of #defines
      3. 5.2.3 Efficient Clearing of the LCD Memory
      4. 5.2.4 Double-buffering of the Display Buffer Using Dual Display Memory
  9. 6Additional Resources

2 MSPM0 LCD Portfolio

Table 2-1 describes the LCD module features that are available on MSPM0 MCUs.

Table 2-1 MSPM0 LCD Module Feature Table
Parameter LCD
Number of segments supported(1) 408/8-mux
Mux mode supported 8, 7, 6, 5, 4, 3, 2, Static
Segment functionality against port pin selection Individual selection
Flexible configuration for COM and Segment pins YES
LCD clock selection LFCLK
LCD clock divider availability 1 to 32
Interrupt capabilities YES (3 sources)
Whole display blinking YES
Programmable blinking frequency YES
Individual segment blinking capabilities with separate memory Yes (Static and 2-4 Mux mode)
Dual memory display YES
Bias mode Static, 1/3 and 1/4
LCD bias generation using resistive network External or Internal
Device protection against no connected capacitance on LOADCAP when charge pump is used NO need for protection (A 0.1µF or larger capacitor must be connected from LOADCAP0 and LOADCAP1 pins)
Charge pump voltage with external voltage reference 3 or 4 × Vref depends on bias mode
Low-power waveforms mode YES
(1) LCD pin count varies with device and package. See device-specific data sheet for detailed information.