SDAA415 September   2026 MSPM0L1126 , MSPM0L1127 , MSPM0L1227 , MSPM0L1227-Q1 , MSPM0L1228 , MSPM0L1228-Q1 , MSPM0L2116 , MSPM0L2117 , MSPM0L2227 , MSPM0L2227-Q1 , MSPM0L2228 , MSPM0L2228-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Key Features
    1. 2.1 Scope
  6. 3 Detailed Description
    1. 3.1 MSPM0L211x LCD Controller Overview
    2. 3.2 Primary and Secondary Topology
    3. 3.3 Primary MCU
      1. 3.3.1 Secondary MCU
    4. 3.4 Why Synchronization is Critical
  7. 4 System Architecture
    1. 4.1 Block Diagram
    2. 4.2 Signal Flow Diagram
  8. 5 Hardware Implementation
    1. 5.1 Signal Interconnections
  9. 6 Theory of Operation
    1. 6.1 Clock Synchronization
    2. 6.2 Frame Synchronization
    3. 6.3 Enable Synchronization
    4. 6.4 COM and SEG Waveform Phase Relationship
  10. 7 Software Configuration
    1. 7.1 Recommended Start-Up Sequence
    2. 7.2 Secondary Initialization Code
    3. 7.3 Primary Initialization Code
    4. 7.4 Updating the Display at Run Time
    5. 7.5 Configuration Parameters Must Match
  11. 8 Launchpad Connections
  12. 9 Timing of Synchronization Signals
  13. 10Cost Analysis
  14. 11Summary
  15. 12References

7.5 Configuration Parameters Must Match

The parameters in Table 7-1 must be identical between the Primary and Secondary. A mismatch on any of these fields causes COM sequencing or voltage-level incompatibilities that produce visible display artifacts or DC bias.

Table 7-1 Configuration Parameters - Must Match Between Primary and Secondary
Parameter Primary Value Secondary Value Impact if Mis-match
muxRate DL_LCD_MUX_RATE_4 DL_LCD_MUX_RATE_4 COM sequencing out of sync
biasMode DL_LCD_BIAS_MODE_3 DL_LCD_BIAS_MODE_3 Voltage levels incompatible
waveMode DL_LCD_WAVE_MODE_LOW_POWER DL_LCD_WAVE_MODE_LOW_POWER Waveform shape mismatch