ST7567 Datasheet, PDF (18/49 Pages) Sitronix Technology Co., Ltd. – 65 x 132 Dot Matrix LCD Controller/Driver

ST7567
Line Address Circuit
The Line Address Circuit incorporates a counter and a Line Address register which is changed only by the “Display Start
Line Set” instruction. This circuit assigns DDRAM a Line Address corresponding to the first display line (COM0). Therefore,
by setting Line Address repeatedly, ST7567 can realize the screen scrolling without changing the contents of DDRAM as
shown in Fig 10. The last common is always the COMS (common output for the icons). That means the icons will never
scroll with the general display data.
Ver 1.4b
Fig 10. Start Line Function
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2009/02/04