參數(shù)資料
型號： SSD1905QT2
廠商： Electronic Theatre Controls, Inc.
英文描述： LCD Graphics Controller CMOS
中文描述： LCD圖形控制器的CMOS
文件頁數(shù)： 133/153頁
文件大?。?/td> 863K
代理商： SSD1905QT2
SOLOMON
Rev 1.3
10/2002
SSD1905
124
Line Address Offset
The Main Window Line Address Offset register (REG[78h], REG[79h]) is based on the display
width and programmed using the following formula.
Main Window Line Address Offset bits 9-0
= Display width in pixels
÷
(32
÷
bpp)
= 160 pixels
÷
(32
÷
8 bpp)
= 40 (28h)
19 Floating Window Mode
This mode enables a floating window within the main display window. The floating window can be
positioned anywhere within the virtual display and is controlled through the Floating Window control
registers (REG[7Ch] through REG[91h]). The floating window retains the same color depth and display
orientation as the main window.
The following diagram shows an example of a floating window within a main window and the registers
used to position it.
Normal Orientation Mode
Floating Window Start Y Position
(REG[89h],REG[88h])
Floating Window
Main Window
Floating Window End Y Position
(REG[91h],REG[90h])
Floating Window End X Position
(REG[8Dh],REG[8Ch])
panel’s origin
Floating Window Start X Position
(REG[85h],REG[84h])
Figure 19-1 :
Floating Window with Display Rotate Mode disabled
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