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S3C2451X RISC MICROPROCESSOR
VIRTUAL DISPLAY
The LCD controller supports the hardware horizontal or vertical scrolling. If the screen is scrolled, the fields of
LCDBASEU and LCDBASEL registers need to be changed (refer to Figure 22-9), but PAGEWIDTH and OFFSIZE
value do not change. The size of video buffer in which the image is stored should be larger than the LCD panel
screen size.
OFFSIZE
This is the data of line 1 of virtual screen. This is the data of line 1 of virtual screen.
This is the data of line 2 of virtual screen. This is the data of line 2 of virtual screen.
This is the data of line 3 of virtual screen. This is the data of line 3 of virtual screen.
This is the data of line 4 of virtual screen. This is the data of line 4 of virtual screen.
This is the data of line 5 of virtual screen. This is the data of line 5 of virtual screen.
This is the data of line 6 of virtual screen. This is the data of line 6 of virtual screen.
This is the data of line 7 of virtual screen. This is the data of line 7 of virtual screen.
This is the data of line 8 of virtual screen. This is the data of line 8 of virtual screen.
This is the data of line 9 of virtual screen. This is the data of line 9 of virtual screen.
This is the data of line 10 of virtual screen. This is the data of line 10 of virtual screen.
This is the data of line 11 of virtual screen. This is the data of line 11 of virtual screen.
LCDBASEU
This is the data of line 1 of virtual screen. This is the data of line 1 of virtual screen.
This is the data of line 2 of virtual screen. This is the data of line 2 of virtual screen.
This is the data of line 3 of virtual screen. This is the data of line 3 of virtual screen.
This is the data of line 4 of virtual screen. This is the data of line 4 of virtual screen.
This is the data of line 5 of virtual screen. This is the data of line 5 of virtual screen.
This is the data of line 6 of virtual screen. This is the data of line 6 of virtual screen.
This is the data of line 7 of virtual screen. This is the data of line 7 of virtual screen.
This is the data of line 8 of virtual screen. This is the data of line 8 of virtual screen.
This is the data of line 9 of virtual screen. This is the data of line 9 of virtual screen.
This is the data of line 10 of virtual screen. This is the data of line 10 of virtual screen.
This is the data of line 11 of virtual screen. This is the data of line 11 of virtual screen.
PAGEWIDTH
Figure 22-9. Example of Scrolling in Virtual Display
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
LCD CONTROLLER
OFFSIZE
Before Scrolling
After Scrolling
LINEVAL + 1
View Port
(The same size
of LCD panel)
LCDBASEL
22-27
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