RA8835A
Version 1.0
Dot Matrix LCD Controller
Consider the example of displaying Chinese characters on a graphics screen. To write the
display data, the cursor address is set to the second screen block, but the cursor is not displayed.
To display the cursor, the cursor address is set to an address within the blank text screen block.
Since the automatic cursor increment is in address units, not character units, the controlling
microprocessor must set the cursor address register when moving the cursor over the graphical
characters.
Figure 7-19: Cursor Movement
If no text screen is displayed, only a bar cursor can be displayed at the cursor address.
If the first layer is a mixed text and graphics screen and the cursor shape is set to a block cursor,
the RA8835A series automatically decides which cursor shape to display. On the text screen it
displays a block cursor, and on the graphics screen, a bar cursor.
RAiO TECHNOLOGY INC.
www.raio.com.tw
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