ADE3800XT View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ADE3800XT

Analog LCD Display Engine for XGA and SXGA Resolutions with Embedded LVDS and RSDS Transmitters

STMicroelectronics 

ADE3800

Register Description by Block

● If it makes the complete 8x8 grid smaller than the total display area, the 8x8 pattern repeats

itself across the entire display area, both vertically and horizontally

Figure 10: 8x8 Grip Mapping Example

grid’s width

and height

are smaller than

the display area:

grids repeat both

horizontally and

vertically

01234567 01234567 01234567

Grid

Grid

Grid

0

0

0

01234567 01234567 01234567

Grid

Grid

Grid

1

1

1

this last part of Grid 0

(cells 1 to 7)

is not displayed

DISPLAY

AREA

1 Cell

this bottom part of Grid 1 One Grid

(all cells) is not displayed with 8 Cells

4.11.3.1 Cell Reset

When PGEN_P0_MODE[1] bit is set, the bar counters will be reset to bar 0, and gradients color

counters will be reset to the default color value C0, each time a new grid cell is reached.

This is to be combined with bar offset settings (refer to Section 4.11.2.2: Bar Width, Height and

Offset Control and the example provided hereafter). For example, this will affect all patterns with

non-zero values for PGEN_P0_GRADSTEP_X and/or PGEN_P0_GRADSTEP_Y.

4.11.3.2 Color C0 Replacement

When PGEN_P0_MODE[0] bit is set, the input video signal takes the place of color C0. In that case,

non-zero gradients will apply the increment value to each R G B color of the input signal, not C0.

Note: If the displayed picture has noticiable jitter, the input R G B values are not stable and may generate

heavy noise on screen when the gradient applied to R G B values rolls over from FF to 00.

4.11.4 Borders

The border generator adds a single pixel wide borderline to the panel area. There are 4 edges: top,

bottom, left and right. Each edge can be enabled independently, and programmed to one of 8 basic

colors using a 3-bit RGB mask:

Table 24: Borders Colors

Colour

Black

Blue

Green

Cyan

Red

Magenta

Yellow

Red

0

0

0

0

1

1

1

Green

0

0

1

1

0

0

1

Blue

0

1

0

1

0

1

0

Value

0

1

2

3

4

5

6

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