EFM32WG Datasheet, PDF (781/834 Pages) List of Unclassifed Manufacturers – The EFM32WG Wonder Gecko is the ideal choice for demanding 8-, 16-, and 32-bit energy sensitive applications.

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Figure 33.16. LCD 1/3 Bias and Duplex Multiplexing - LCD_SEG0-LCD_COM1
V_LC0 (V_LCD)
V_LC1 (2/3V_LCD)
V_LC2 (1/3V_LCD)
V_LC3 (V_SS)
-V_LC2 (1/3V_LCD)
-V_LC1 (2/3V_LCD)
-V_LC0 (V_LCD)
Fram e St art
Fram e End
33.3.3.4 Waveforms with 1/2 Bias and Triplex Multiplexing
In this mode, each frame is divided into 6 periods. LCD_COM[2:0] lines can be multiplexed with all
segment lines. Figures show 1/2 bias and triplex multiplexing (waveforms show two frames).
Figure 33.17. LCD 1/2 Bias and Triplex Multiplexing - LCD_COM0
V_LC0 (V_LCD)
V_LC1 (1/2V_LCD)
V_LC3 (V_SS)
Fram e St art
Fram e End
Figure 33.18. LCD 1/2 Bias and Triplex Multiplexing - LCD_COM1
V_LC0 (V_LCD)
V_LC1 (1/2V_LCD)
V_LC3 (V_SS)
Fram e St art
Fram e End
Figure 33.19. LCD 1/2 Bias and Triplex Multiplexing - LCD_COM2
V_LC0 (V_LCD)
V_LC1 (1/2V_LCD)
V_LC3 (V_SS)
Fram e St art
Fram e End
1/2 bias and triplex multiplexing - LCD_SEG0
The LCD_SEG0 waveform on the left is just an example to illustrate how different segment waveforms
can be multiplexed with the COM lines in order to turn on and off LCD pixels. As illustrated in the
figures below, this waveform will turn ON pixels connected to LCD_COM1, while pixels connected to
LCD_COM0 and LCD_COM2 will be turned OFF.
2013-05-08 - Wonder Gecko Family - d0233_Rev0.50
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