RA8835A
Version 1.0
Dot Matrix LCD Controller
7-13 Scrolling
The controlling microprocessor can set the RA8835A series scrolling modes by overwriting the scroll
address registers SAD1 to SAD4, and by directly setting the scrolling mode and scrolling rate.
7-13-1 On-page Scrolling
The normal method of scrolling within a page is to move the whole display up one line and erase
the bottom line. Since the RA8835A series does not automatically erase the bottom line, it must
be erased with blanking data when changing the scroll address register.
Figure 7-23: On-page Scrolling
7-13-2 Inter-page Scrolling
Scrolling between pages and page switching can be performed only if the display memory
capacity is greater than one screen.
Figure 7-24: Inter-page Scrolling
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