ra8803 RAIO Technology Inc., ra8803 Datasheet - Page 37

• Manufacturer Part Number: ra8803
• Description: Two Layers Character/graphic Lcd Controller Specification
• Manufacturer: RAIO Technology Inc.

Version 2.5
RAiO
7-5 Cursor
TECHNOLOGY INC.
7-5-1 Cursor Position and Shift
7-5-2 Cursor Display and Blinking
7-5-3 Cursor Width and Height
The cursor-moving unit of segment is one byte(or eight pixel). But the moving unit of common is
one pixel. For example, if user want to show “制” at third location of upper-left, then the Register
value are CPXR = 04h, CPYR = 00h. If user want to show “器” at first position of second line, the
register value are CPXR = 00h, CPYR = 10h. Please refer to Figure 7-7.
The cursor position is controlled by Register CPXR and CPYR for both text and graphics mode.
You can also setup the Auto-Increase mode for write to DDRAM or read data DDRAM. The cursor-
moving boundary depends on the active window.
The user could control cursor On/Off or Blinking. The register [80h] BTMR is used to set up the
blinking time.
The cursor height is controlled by register DWLR Bit[7..4], and the height is setting from 1~16pixel.
It does depend on user’s requirement.
EFh
10h
20h
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00 01 02 03 04 05
Figure 7-7: Example of RA8803 Cursor Position
Blinking Time = BTMR[80h] Bit[7..0] x (1/Frame_Rate)
320(Segment) x 240(Common)
06........................………....................... 39
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Two Layers Character/Graphical LCD Controller
RA8803/8822
www.raio.com.tw