ra8806 RAIO Technology Inc., ra8806 Datasheet - Page 37

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

Preliminary Version 1.2
RA O
i
TECHNOLOGY INC.
For RA8806, if LCD resolution is 240x160 pixels then the display window resolution is 240x160. We
can create an active window in the display window like Figure 6-13. This figure show the display
resolution is 240x160, and a 120x120 active window is on the upper-left. The relative setting of the
active window as following:
LCD_CmdWrite ( 0x40 );
LCD_DataWrite ( 0x00 );
LCD_CmdWrite ( 0x20 );
LCD_DataWrite ( 0x0E );
LCD_CmdWrite ( 0x50 );
LCD_DataWrite ( 0x00 );
LCD_CmdWrite ( 0x30 );
LCD_DataWrite ( 0x77 );
LCD_CmdWrite ( 0x21 );
LCD_DataWrite ( 0x1D );
LCD_CmdWrite ( 0x31 );
LCD_DataWrite ( 0x9F );
119
120
159
0
1
2
:
:
:
:
:
:
:
:
:
:
0 1 2 ………………………. 119 120 ……………………… 239
Figure 6-13 : Display Window and Active Window
Active Window
120 x 120
// AWLR = 00h = 0
// AWRR = 0Eh = 14
// AWTR = 00h = 0
// AWBR = 77h = 119
// DWWR = 1Dh = 29
// DWHR = 9Fh = 159
240
37/184
Display Window
Two Layers Character/Graphic LCD Controller
240 x 160
( 120 / 8 ) – 1
( 240 / 8 ) – 1
120 – 1
160 – 1
160
www.raio.com.tw
RA8806