ra8835 Topway Display, ra8835 Datasheet - Page 44

• Manufacturer Part Number: ra8835
• Description: Dot Matrix Lcd Controller
• Manufacturer: Topway Display

RAiO TECHNOLOGY INC.
Version 1.7
7-12 Memory to Display Relationship
The RA8835 series supports virtual screens that are larger than the physical size of the LCD panel
address range, C/R. A layer of the RA8835 series can be considered as a window in the larger virtual
screen held in display memory. This window can be divided into two blocks, with each block able to
display a different portion of the virtual screen.
This enables, for example, one block to dynamically scroll through a data area while the other acts as
a status message display area. See Figure 7-20 and 7-21.
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 RA8835 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.
18 dots
8 dots 8 dots
Auto shift
Figure 7-19: Cursor Movement
Auto shift
8 dots 8 dots
44/86
Cursor address preset
Auto shift
Block cursor
Dot Matrix LCD Controller
www.raio.com.tw
RA8835