Preliminary
S3C2451X RISC MICROPROCESSOR
LCD
CONTROLLER
22-15
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.
8BPP display (Palette)
(BSWP = 0, HWSWP = 0)
D[31:24]
D[23:16]
D[15:8]
D[7:0]
000H P1 P2 P3 P4
004H P5 P6 P7 P8
008H P9 P10 P11 P12
...
(BSWP = 1, HWSWP = 0)
D[31:24]
D[23:16]
D[15:8]
D[7:0]
000H P4 P3 P2 P1
004H P8 P7 P6 P5
008H P12 P11 P10 P9
...
P1
P2
P3
P4
P5
......
LCD Panel
P6
P7
P8
P10
P11
P12
P9
NOTE:
The values of frame buffer are index of palette memory.
The MSB value of Palette memory is AEN bit.
AEN : Select Alpha value in Window 1 Alpha Value Register for alpha blending
AEN = 0 : ALPHA0_R/G/B values are applied.
AEN = 1 : ALPHA1_R/G/B values are applied.
Each pixel of LCD panel displays blended color with lower layer window.
Refer to the equation of alpha blending on page 22-22.