STV6410A Просмотр технического описания (PDF) - STMicroelectronics

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STV6410A

AUDIO/VIDEO SWITCH MATRIX

STMicroelectronics 

STV6410A

I2C BUS SELECTION (continued)

TV Video Output

Register

Address

(HEX)

Description

03

R/C TV Output Selection

RF output : adder control

and chroma subcarrier filter

selection

Y/CVBS output and

chroma signal selection

Chroma switch muting

04

ENCODER R/Csub Clamp

AUX R/Csub Clamp

RGB output Gain

FB Output

RGB ouputs selection

Data

Bits

d7 d6 d5 d4 d3 d2 d1 d0

Comments

1 X X X X X X X 0 Red signal selected

X X X X X X X 1 Chroma signal selected

2 X X X X X X 0 X CVBS to RF output

X X X X X X 1 X Y+C to RF output

X X X X X 0 X X Filter not active

X X X X X 1 X X Filter active

3 X X 0 0 0 X X X Y/CVBS & chroma muted

X X 0 0 1 X X X Y/CVBS_AUX & R/C_AUX

X X 0 1 0 X X X Y_AUX & R/C_AUX

X X 0 1 1 X X X Y/CVBS _VCR & C_VCR

X X 1 0 0 X X X CVBS_ASTB & Chr. muted

X X 1 0 1 X X X Y/CVBS_ENC & R/C_ENC

X X 1 1 0 X X X Y_ENC & C_ENC

X X 1 1 1 X X X NOT ALLOWED

1 X 0 X X X X X X Chroma Output controlled by

d5-d4-d3 from register 03.

X 1 X X X X X X Chroma Output forced to mute.

1 X X X X X X X 0 Bottom Level Clamp

X X X X X X X 1 Average Level Clamp

1 X X X X X X 0 X Bottom Level Clamp

X X X X X X 1 X Average Level Clamp

2 X X X X 0 0 X X +6dB gain

X X X X 1 1 X X +3dB gain (1dB/Step)

2 X X 0 0 X X X X FB forced to low level

X X 0 1 X X X X FB forced to high level

X X 1 0 X X X X FB from Encoder

X X 1 1 X X X X FB from AUX

2 0 0 X X X X X X Muted

0 1 X X X X X X RGB_Encoder selected

1 0 X X X X X X RGB_AUX selected

1 1 X X X X X X NOT ALLOWED

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