ra8806 RAIO Technology Inc., ra8806 Datasheet - Page 36

• Manufacturer Part Number: ra8806
• Description: Two Layers Character/graphic Lcd Controller
• Manufacturer: RAIO Technology Inc.

Preliminary Version 1.2
RAiO
TECHNOLOGY INC.
For RA8806, if LCD panel resolution is 320x240 pixels then the display window resolution is
320x240. We can create an active window in the display window like Figure 6-12. This figure show
the display resolution is 320x240, and a 160x160 active window is on the upper-middle. The relative
setting of the active window as following:
LCD_CmdWrite ( 0x40 );
LCD_DataWrite ( 0x09 );
LCD_CmdWrite ( 0x20 );
LCD_DataWrite ( 0x1D );
LCD_CmdWrite ( 0x50 );
LCD_DataWrite ( 0x00 );
LCD_CmdWrite ( 0x30 );
LCD_DataWrite ( 0x9F );
LCD_CmdWrite ( 0x21 );
LCD_DataWrite ( 0x27 );
LCD_CmdWrite ( 0x31 );
LCD_DataWrite ( 0xEF );
159
160
239
Figure 6-12 : RA8806 Display Window and Active Window
0
1
2
:
:
:
:
:
:
:
:
:
:
0 1 2 …….... 79 80 ………………………… 239 240 ……… 319
80
// AWLR = 09h = 9
// AWRR = 1Dh = 29
// AWTR = 00h = 0
// AWBR = 9Fh = 159
// DWWR = 27h = 39
// DWHR = EFh = 239
Active Window
80
160 x 160
320
36/184
Two Layers Character/Graphic LCD Controller
Display Window
320 x 240
( 80 / 8) – 1
( 240 / 8 ) – 1
( 320 / 8 ) – 1
160 – 1
240 – 1
80
240
www.raio.com.tw
RA8806