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RL78/D1A User's Manual: Hardware - Renesas

RL78/D1A User's Manual: Hardware - Renesas

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Under development<br />

Preliminary document<br />

Specifications in this document are tentative and subject to change.<br />

<strong>RL78</strong>/<strong>D1A</strong> CHAPTER 16 LCD CONTROLLER/DRIVER<br />

Figure 16-15 shows the common signal waveforms, and Figure 16-16 shows the voltages and phases of the common<br />

and segment signals.<br />

COMn<br />

(Static display)<br />

TF = T<br />

Figure 16-15. Common Signal Waveforms<br />

(a) Static display mode<br />

T: One LCD clock period TF: Frame frequency<br />

COMn<br />

(Three-time slot mode)<br />

COMn<br />

(Four-time slot mode)<br />

TF = 3 × T<br />

TF = 4 × T<br />

(b) 1/3 bias method<br />

T: One LCD clock period TF: Frame frequency<br />

R01UH0317EJ0004 Rev. 0.04 984<br />

Feb. 22, 2013<br />

VLC0<br />

VSS<br />

VLC0<br />

VLC1<br />

VLC2<br />

VSS<br />

VLC0<br />

VLC1<br />

VLCD<br />

VLC2<br />

VSS<br />

VLCD<br />

VLCD

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