EFM32WG Datasheet, PDF (779/834 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 33.9. LCD 1/2 Bias and Duplex Multiplexing - LCD_SEG0-LCD_COM0
V_LC0 (V_LCD)
V_LC1 (1/2V_LCD)
V_LC3 (V_SS)
-V_LC1 (1/2V_LCD)
-V_LC0 (V_LCD)
Fram e St art
Fram e End
1/2 bias and duplex multiplexing - LCD_SEG0-LCD_COM1
• DC voltage = 0 (over one frame)
• V_RMS = 0.35 × V_{LCD_OUT}
• The LCD display pixel that is connected to LCD_SEG0 and LCD_COM0 will be OFF with this waveform
Figure 33.10. LCD 1/2 Bias and Duplex Multiplexing - LCD_SEG0-LCD_COM1
V_LC0 (V_LCD)
V_LC1 (1/2V_LCD)
V_LC3 (V_SS)
-V_LC1 (1/2V_LCD)
-V_LC0 (V_LCD)
Fram e St art
Fram e End
33.3.3.3 Waveforms with 1/3 Bias and Duplex Multiplexing
In this mode, each frame is divided into 4 periods. LCD_COM[1:0] lines can be multiplexed with all
segment lines. Figures show 1/3 bias and duplex multiplexing (waveforms show two frames).
Figure 33.11. LCD 1/3 Bias and Duplex Multiplexing - LCD_COM0
V_LC0 (V_LCD)
V_LC1 (2/3V_LCD)
V_LC2 (1/3V_LCD)
V_LC3 (V_SS)
Fram e St art
Fram e End
Figure 33.12. LCD 1/3 Bias and Duplex Multiplexing - LCD_COM1
V_LC0 (V_LCD)
V_LC1 (2/3V_LCD)
V_LC2 (1/3V_LCD)
V_LC3 (V_SS)
Fram e St art
Fram e End
2013-05-08 - Wonder Gecko Family - d0233_Rev0.50
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