ade3700 STMicroelectronics, ade3700 Datasheet - Page 60

• Manufacturer Part Number: ade3700
• Description: Analog Lcd Display Engine For Xga And Sxga Resolutions
• Manufacturer: STMicroelectronics

sRGB
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2.14
2.14.1 Parametric Gamma, Digital Contrast / Brightness on Multiple Windows
2.14.2 Color Space Warp
SRGB_CTRL
SRGB_BLACK_R
sRGB
The sRGB block performs two primary functions:
The function can be applied to the entire window by programming the window control to full screen.
Each color channel acts independently. Simple digital contrast and brightness can be programmed
using this hardware function. The desired window coordinates are programmed into the TCON.
The 8 corners of the color cube are independently controlled in 3D space with smooth interpolation
of intermediate colors. Registers are 2’s complement color delta’s. For example, to make WHITE
more like RED, program SRGB_WHITE_R to a small positive value.
Register Name
1. Parametric gamma correction on multiple windows or full screen, used for video enhancement
2. 3D color cube warping RGB color space.
in a window and digital contrast/brightness control. The window coordinates are set by TCON
registers.
0x0D00
0x0D01
Table 20: sRGB Registers (Sheet 1 of 3)
Addr
IN
Figure 8: Color Space Warp
Color Space Warp
R/W
R/W
R/W
R/W
R/W
Mode
[5:4]
[3:2]
[1:0]
[7:6]
[7:0]
Bits
0x0
0x0
0x0
0x0
Default
0x0
OUT
0x0: disable
0x1: full screen
0x2: windowed
0x3: Reserved
0x0: disable
0x1: full screen
0x2: windowed
0x3: Reserved
sRGB control
0x0: disabled
0x1: full screen
0x2: windowed
0x3: Reserved
Reserved
gamma_b control
gamma_a control
Black Point Red Delta
Description
ADE3700