PRELIMINARY
S3C6400X RISC MICROPROCESSOR
DISPLAY
CONTROLLER
14-59
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.
W2KEYCON0
Bit
Description
Initial state
KEYBLEN
[26]
Color Key (Chroma key ) Enable control
0 = disable ( blending operation disable )
1 = Blending using ALPHA0_x for non-key area, ALPHA1_x for key
area (x=R, G, B)
0
KEYEN_F
[25]
Color Key (Chroma key ) Enable control
0 = color key disable
1 = color key enable
0
DIRCON
[24]
Color key (Chroma key) direction control
0 = If the pixel value of fore-ground image matches with COLVAL, the
pixel from back-ground image is displayed ( only in OSD area)
1 = If the pixel value of back-ground matches with COLVAL, the pixel
from fore-ground image is displayed ( only in OSD area)
0
COMPKEY
[23:0]
Each bit corresponds to the COLVAL[23:0].
If some position bit is set then that position bit of COLVAL will be
ignored in the fore-ground or back-ground match.
0
Note.
Set BLD_PIX = 1, ALPHA_SEL =0 to use alpha blending using color key,
WIN2 Color key 1 Register
Register
Address
R/W
Description
Reset Value
W2KEYCON1
0x7710014C
R/W
Color key value ( transparent value) register
0x0000_000
0
W2KEYCON1
Bit
Description
Initial state
COLVAL
[23:0]
Color key value for the transparent pixel effect.
0
Win3 Color Key 0 Register
Register
Address
R/W
Description
Reset Value
W3KEYCON0
0x77100150
R/W
Color key control register
0x00000
W3KEYCON0
Bit
Description
Initial state
KEYBLEN
[26]
Color Key (Chroma key ) Enable control
0 = disable ( blending operation disable )
1 = Blending using ALPHA0_x for non-key area, ALPHA1_x for key
area (x=R, G, B)
0
KEYEN_F
[25]
Color Key (Chroma key ) Enable control
0 = color key disable
1 = color key enable
0
DIRCON
[24]
Color key (Chroma key)direction control
0 = If the pixel value of fore-ground image matches with COLVAL, the
0