ra8803 RAIO Technology Inc., ra8803 Datasheet - Page 18

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

Version 2.5
RAiO
effect of rolling.
REG [31] Display Window Bottom Register (DWBR)
Note: Only when Common is 128, the Common_Bottom = LCD Common Number. Refer to the section 5-3.
REG [41] Display Window Left Register (DWLR)
REG [51] Display Window Top Register (DWTR)
Note: For some registers setting, please refer the following rule:
REG [60h] Cursor Position X Register (CPXR)
REG [61h] Begin Segment Position Register (BGSG)
TECHNOLOGY INC.
7-0
7-6
5-0
7-0
7-0
7-6
5-0
Bit
Bit
Bit
Bit
Bit
1. DWRR≥ AWRR≥ CPXR≥ AWLR≥ DWLR
2. DWBR≥ AWBR≥ CPYR≥ AWTR≥ DWTR
Display Window Bottom Position
RA8803: If LCD panel resolution is 320*240, the value of the register
is:
RA8822: If LCD panel resolution is 240*160, the value of the register
is:
Display Window Left Position
Display Window Top Position
Usually set “0h”.
Usually set “0h”.
Reserved
Cursor Position of Segment
Reserved
Segment Start Position of Scrolling Mode
Common_ Bottom = LCD Common Number –1
240 – 1 = 239 = EFh
160 – 1 = 159 = 9Fh
Description
Description
Description
Description
Description
Segment-Left
Common-Top
18/48
Common-Bottom
Two Layers Character/Graphical LCD Controller
RA8803/8822
Default
Default
Default
Default
Default
EFh
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0h
0h
0h
0h
0h
0h
Access
Access
Access
Access
Access
R/W
R/W
R/W
R/W
R/W
R/W
R