Samsung S3C6400X User Manual page 421

S3C6400X RISC MICROPROCESSOR
W2KEYCON0 Bit
KEYBLEN [26]
KEYEN_F [25]
DIRCON [24]
COMPKEY [23:0]
Note. Set BLD_PIX = 1, ALPHA_SEL =0 to use alpha blending using color key,
WIN2 Color key 1 Register
Register Address
W2KEYCON1 0x7710014C
W2KEYCON1 Bit
COLVAL [23:0]
Win3 Color Key 0 Register
Register Address
W3KEYCON0 0x77100150
W3KEYCON0 Bit
KEYBLEN [26]
KEYEN_F [25]
DIRCON [24]
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)
Color Key (Chroma key ) Enable control
0 = color key disable
1 = color key enable
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)
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.
R/W
R/W Color key value ( transparent value) register
Color key value for the transparent pixel effect.
R/W
R/W Color key control register
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)
Color Key (Chroma key ) Enable control
0 = color key disable
1 = color key enable
Color key (Chroma key)direction control
0 = If the pixel value of fore-ground image matches with COLVAL, the
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.
Description
Description
Description
Description
Description
DISPLAY CONTROLLER
Initial state
0
0
0
0
Reset Value
0x0000_000
0
Initial state
0
Reset Value
0x00000
Initial state
0
0
0
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