ADE3300 datasheet(64/88 Pages) STMICROELECTRONICS

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SRGB Block

ADE3XXX

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2.18

SRGB Block

The sRGB block performs two primary functions:

1. Parametric gamma correction on multiple windows or full screen for video enhancement in a

window and digital contrast/brightness control. The window coordinates are set by TCON

registers.

2. 3D color cube warping RGB color space.

2.18.1 Parametric Gamma Correction and Digital Contrast/Brightness Control

The function is applied to the entire window by programming the window control to full screen.

Each color channel acts independently. Simple digital contrast and brightness are programmable

with this hardware function. The desired window coordinates are programmed into the TCON.

2.18.2 Color Space Warp

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.

PGEN_P1_SEQ_COL6_COL7

0x0640

[7]

Reserved

R/W

[6:4]

0x0

Pattern 1 Bar 7 Color

[3]

Reserved

R/W

[2:0]

0x0

Pattern 1 Bar 6 Color

PGEN_B_TOP_BOTTOM

0x0641

R/W

[7]

0x0

Top Border Enable

R/W

[6]

0x0

Top Border Red; 0 = Off, 1= On

R/W

[5]

0x0

Top Border Green; 0 = Off, 1= On

R/W

[4]

0x0

Top Border Blue; 0 = Off, 1= On

R/W

[3]

0x0

Bottom Border Enable

R/W

[2]

0x0

Bottom Border Red; 0 = Off, 1= On

R/W

[1]

0x0

Bottom Border Green; 0 = Off, 1= On

R/W

[0]

0x0

Bottom Border Blue; 0 = Off, 1= On

PGEN_B_LEFT_RIGHT

0x0642

R/W

[7]

0x0

Left Border Enable

R/W

[6]

0x0

Left Border Red; 0 = Off, 1= On

R/W

[5]

0x0

Left Border Green; 0 = Off, 1= On

R/W

[4]

0x0

Left Border Blue; 0 = Off, 1= On

R/W

[3]

0x0

Right Border Enable

R/W

[2]

0x0

Right Border Red; 0 = Off, 1= On

R/W

[1]

0x0

Right Border Green; 0 = Off, 1= On

R/W

[0]

0x0

Right Border Blue; 0 = Off, 1= On

PGEN_X_TOTAL_L

0x0643

R/W

[7:0]

0x0

Total Horizontal Size [7:0]

PGEN_X_TOTAL_H

0x0644

[7:4]

Reserved

R/W

[3:0]

0x0

Total Horizontal Size [11:8]

PGEN_Y_TOTAL_L

0x0645

R/W

[7:0]

0x0

Total Vertical Size [7:0]

PGEN_Y_TOTAL_H

0x0646

[7:4]

Reserved

R/W

[3:0]

0x0

Total Vertical Size [11:8]

Table 21: PGEN Registers (Sheet 4 of 4)

Addr

Mode

Bits

Default

Description

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