User's Manual

Table Of Contents
S3C2450X RISC MICROPROCESSOR LCD CONTROLLER
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8.1.20 WIN 1 Color key 1 Register
Register Address R/W Description Reset Value
W1KEYCON1 0x4C8000B4 R/W Color key value ( transparent value) register 0x0000_0000
W1KEYCON1 Bit Description Initial state
COLVAL [23:0] Color key value for the transparent pixel effect 0
NOTE:
COLVAL and COMPKEY use 24-bit color data at all bpp mode. Unused higher bits should be ‘1b’.
@ BPP24 mode: 24-bit color value is valid.
A. COLVAL
- Red: COLVAL [23:16]
- Green: COLVAL [15: 8]
- Blue: COLVAL [7:0]
B. COMPKEY
- Red: COMPKEY [23:16]
- 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’.