ra8835a RAIO Technology Inc., ra8835a Datasheet - Page 50

• Manufacturer Part Number: ra8835a
• Description: Dot Matrix Lcd Controller
• Manufacturer: RAIO Technology Inc.

RAiO TECHNOLOGY INC.
Version 1.0
7-13 Scrolling
7-13-1 On-page Scrolling
7-13-2 Inter-page 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.
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.
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
Figure 7-23: On-page Scrolling
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Dot Matrix LCD Controller
RA8835A
www.raio.com.tw