Samsung S3C2440A User Manual

Page 393

S3C2440A RISC MICROPROCESSOR

LCD CONTROLLER

15-25

VIRTUAL DISPLAY (TFT/STN)

The S3C2440A supports hardware horizontal or vertical scrolling. If the screen is scrolled, the fields of LCDBASEU
and LCDBASEL in LCDSADDR1/2 registers need to be changed (see Figure 15-8), except the values of
PAGEWIDTH and OFFSIZE.
The video buffer in which the image is stored should be larger than the LCD panel screen in size.

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.

Before Scrolling

View Port
(The same size
of LCD panel.)

LINEVAL + 1

OFFSIZE

PAGEWIDTH