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

Register Name

DMEAS_DATA_0

DMEAS_DATA_1

DMEAS_DATA_2

DMEAS_DATA_3

DMEAS_DATA_4

DMEAS_DATA_5

DMEAS_DATA_6

DMEAS_DATA_7

Table 21: DMEAS Registers (Sheet 3 of 3)

Addr Mode Bits Rst

Description

090E R

090F R

0910 R

0911 R

0912 R

0913 R

0914 R

0915 R

[7:0]

00

Refer to Table 22 below

[7:0]

00

[7:0]

00

[7:0]

00

[7:0]

00

[7:0]

00

[7:0]

00

[7:0]

00

Table 22: DMEAS Output Registers Assignment

alg_sel = 00

alg_sel = 01

alg_sel = 10

alg_sel = 11

DMEAS_DATA_0 edge_out [7:0]

min_out [7:0]

hpos_min [7:0]

de_size_out [7:0]

DMEAS_DATA_1 edge_out [15:8]

DMEAS_DATA_2 edge_out [23:16]

max_out [7:0]

pcd_out [7:0]

hpos_min [11:8]

hpos_max [7:0]

de_size_out [15:8]

de_mismatch_flag

DMEAS_DATA_3 edge_out [31:24] pcd_out [15:8]

hpos_max [11:8] N/A

DMEAS_DATA_4 psum_out [7:0]

DMEAS_DATA_5 psum_out [15:8]

pcd_out [23:16] vpos_min [7:0]

N/A

N/A

vpos_min [11:8] N/A

DMEAS_DATA_6 psum_out [23:16] N/A

vpos_max [7:0]

N/A

DMEAS_DATA_7 psum_out [31:24] N/A

vpos_max [11:8] N/A

4.10 Scale (SCL)

ADE scales input video to output panel resolution without external video frame memory. This

requires tuning of the panel timing parameters to make the vertical active time match the panel’s.

Features:

● Separable 3V x 4H polyphase filter:

— 3 line filter for H resolutions <= 1024

— 2 line filter for H resolutions > 1024

● independent H & V kernel register storage

— 64 phases are interpolated from 6V or 10H reference points

— symmetric kernels only

— coefficients range from –2 to +1 63/64

● Simple pointer collision feedback mechanism

● 2-way 3rd generation context sensitive filtering

53/138

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