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S3C2416X RISC MICROPROCESSOR
LCD
CONTROLLER
21-23
3.2 BLENDING DIAGRAM/DETAILS
LCD controller could blend 2-Layer for the only one pixel at the same time. The Blending factor, alpha value is
controlled by ALPHA0_R/G/B and ALPHA1_R/G/B fields in Window 1 Alpha Value register or DATA[27:24] in
frame buffer, which are implemented for each window layer and color(R,G,B). As a special feature, between two
windows have two kinds of alpha blending value. One is ALPHA0_R/G/B(AEN=0) and the other is
ALPHA1_R/G/B(AEN=1).
Table 21-4. Alpha Value Selection Table for Blending
ALPHA_SEL = 0
@WINCON1[1]
ALPHA0_R/G/B
BLD_PIX = 0
(WINCON1[6])
ALPHA_SEL = 1
@WINCON1[1]
ALPHA1_R/G/B
AEN = 0
ALPHA0_R/G/B
KEYBLEND = 0
@W1KEYCON0[26]
AEN = 1
ALPHA1_R/G/B
Non-Key area
ALPHA0_R/G/B
ALPHA_SEL = 0
@WINCON1[1]
KEYBLEND = 1
@W1KEYCON0[26]
Key area
ALPHA1_R/G/B
BLD_PIX = 1
@WINCON1[6]
ALPHA_SEL = 1
@WINCON1[1]
DATA[27:24] in frame buffer for 28bpp mode
3.2.1 COLOR-KEY FUNCTION
The LCD controller can support color-key function for the various effect of image mapping. Color image of OSD
layer, which is specified by COLOR-KEY register, will be substituted by background image for special
functionality, as cursor image or pre-view image of the camera.
The register value to ColorKey reg must be set in 24bit RGB format.
DIRCON (in Win1 Color Key 0 register) bit selects the window to be compared with COLVAL (in Win1 Color Key 1
Register). If this bit is set to ‘0’, the comparison window is window1 (foreground window).
COMPKEY (in Win1 Color Key 0 register) value decides whether to compare COLVAL and selected window color.
In other words, the comparator only compares COLVAL and selected window color bits where the corresponding
bit in COMPKEY is ‘0’.
Содержание S3C2416
Страница 33: ...S3C2416X RISC MICROPROCESSOR PRODUCT OVERVIEW 1 5 3 BLOCK DIAGRAM Figure 1 1 S3C2416X Block Diagram ...
Страница 38: ...PRODUCT OVERVIEW S3C2416X RISC MICROPROCESSOR 1 10 153 AIN 1 U14 195 EINT 10 GPG2 K15 237 SDATA 14 C18 ...
Страница 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Страница 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Страница 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Страница 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Страница 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Страница 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Страница 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Страница 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Страница 455: ...S3C2416X RISC MICROPROCESSOR HSMMC CONTROLLER 20 9 4 9 SD COMMAND ISSUE SEQUENCE Figure 20 9 Timeout Setting Sequence ...
Страница 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Страница 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Страница 653: ...S3C2416X RISC MICROPROCESSOR ELECTRICAL DATA 26 15 Figure 26 14 SDRAM READ WRITE Timing Trp 2 Trcd 2 Tcl 2 DW 16 bit ...
Страница 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...
Страница 672: ...MECHANICAL DATA S3C2416X RISC MICROPROCESSOR 30 2 Figure 27 2 330 FBGA 1414 Package Dimension 2 Bottom View ...