Preliminary
LCD CONTROLLER
S3C2451X RISC MICROPROCESSOR
22-40
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.
Window 1 Position Control A Register
Register Address
R/W
Description
Reset
Value
VIDOSD1A
0x4C800034
R/W
Video Window 1’s position control 2 register
0x0000_0000
VIDOSD1A Bit
Description initial
state
OSD_LeftTopX_F
[21:11]
Horizontal screen coordinate for left top pixel of OSD image
0
OSD_LeftTopY_F [10:0]
Vertical
screen
coordinate for left top pixel of OSD image
0
Window 1 Position Control B Register
Register Address
R/W
Description
Reset
Value
VIDOSD1B
0x4C800038
R/W
Video Window 1’s position control register
0x0000_0000
VIDOSD1B Bit
Description Initial
state
OSD_RightBotX_F [21:11]
Horizontal screen coordinate for right bottom pixel of OSD
image
0
OSD_RightBotY_F
[10:0]
Vertical screen coordinate for right bottom pixel of OSD image
0
NOTE:
Registers must have word boundary X position.
So, 24bpp mode should have X position by 1 pixel. ( ex, X = 0,1,2,3….)
16bpp mode should have X position by 2 pixel. ( ex, X = 0,2,4,6….)
8bpp mode should have X position by 4 pixel. ( ex, X = 0,4,8,12….)
Window 1 Alpha Value Register
Register Address
R/W
Description
Reset
Value
VIDOSD1C
0x4C80003C
R/W
Video Window 1’s alpha value register
0x0000_0000
ALPHAVAL Bit
Description
Initial
state
Reserved [31:24]
Reserved
0
ALPHA0_R
[23:20]
Red Alpha0 value
0
ALPHA0_G
[19:16]
Green Alpha0 value
0
ALPHA0_B [15:12]
Blue
Alpha0
value
0
ALPHA1_R
[11:8]
Red Alpha1 value
0
ALPHA1_G
[7:4]
Green Alpha1 value
0
ALPHA1_B [3:0]
Blue
Alpha1
value
0