Samsung S3C6400X User Manual page 423

S3C6400X RISC MICROPROCESSOR
WIN4 Color key 1 Register
Register Address
W4KEYCON1 0x7710015C
W4KEYCON1 Bit
COLVAL [23:0]
Note. COLVAL and COMPKEY use 24bit color data at all BPP mode.
@ BPP24 mode : 24 bit color value is valid.
A. COLVAL
- Red : COLVAL[23:17]
- Green: COLVAL[15: 8]
- Blue : COLVAL[7:0]
B. COMPKEY
- Red : COMPKEY[23:17]
- Green: COMPKEY[15: 8]
- Blue : COMPKEY[7:0]
@ BPP16 (5:6:5) mode : 16 bit color value is valid
A. COLVAL
- Red : COLVAL[23:19]
- Green: COLVAL[15: 10]
- Blue : COLVAL[7:3]
B. COMPKEY
- Red : COMPKEY[23:19]
- Green: COMPKEY[15: 10]
- Blue : COMPKEY[7:3]
- COMPKEY[18:16] must be 0x7.
- COMPKEY[ 9: 8] must be 0x3.
- COMPKEY[ 2:0] must be 0x7.
Note. COMPKEY register must be set properly for the each BPP mode.
R/W
R/W Color key value ( transparent value) register
Color key value for the transparent pixel effect.
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
DISPLAY CONTROLLER
Reset Value
0x0000_000
0
Initial state
0
14-61