ADE3800SXT datasheet(53/138 Pages) STMICROELECTRONICS

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ADE3800

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 3

rd generation context sensitive filtering

DMEAS_DATA_0

090E

[7:0]

Refer to Table 22 below

DMEAS_DATA_1

090F

[7:0]

DMEAS_DATA_2

0910

[7:0]

DMEAS_DATA_3

0911

[7:0]

DMEAS_DATA_4

0912

[7:0]

DMEAS_DATA_5

0913

[7:0]

DMEAS_DATA_6

0914

[7:0]

DMEAS_DATA_7

0915

[7:0]

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]

max_out [7:0]

hpos_min [11:8]

de_size_out [15:8]

DMEAS_DATA_2

edge_out [23:16]

pcd_out [7:0]

hpos_max [7:0]

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]

pcd_out [23:16]

vpos_min [7:0]

N/A

DMEAS_DATA_5

psum_out [15:8]

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

Table 21: DMEAS Registers (Sheet 3 of 3)

Addr

Mode

Bits

Rst

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