STV2247H 查看數據表（PDF） - STMicroelectronics

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STV2247H

I2C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR

STMicroelectronics 

STV224XH/228XH/223XH - I²C BUS SELECTION

Reg.

Data

Addr.

(Hex)

Description

Bits

d7 d6 d5 d4 d3 d2 d1 d0

Comments

19 Vertical Output Low

Level Control

1 X X X X X X X 0 0 = 0.1 V low level on VERT Pin.

X X X X X X X 1 1 = 2 V low level on VERT Pin.

Frame Blanking

1 X X X X X X 0 X 0 = Adapted to standard.

X X X X X X 1 X 1 = Long blanking (50 Hz blanking) both in 50 Hz

and 60 Hz modes

Noise Detector

Threshold

2 X X X X 0 0 X X Low threshold.

X X X X 1 1 X X High threshold.

Not to be used

1 XX 0 0 XXXX

Wide Line Blanking

1

X X 0 X X X X X 0 = Standard Line Blanking

X X 1 X X X X X 1 = Wide Line Blanking

Copy Protection Mode

1

X 0 X X X X X X 0 = Normal PLL1 operating mode.

X 1 X X X X X X 1 = Copy Protection Mode.

AV Mode Time

Constant

1 0 X X X X X X X 0 = PLL1 short time constant during all frames.

1 X X X X X X X 1 = PLL1 long time constant during vertical blank-

ing, short time constant for the rest of the field.

6.3.9 Miscellaneous

Reg.

Data

Addr.

(Hex)

Description

Bits

d7 d6 d5 d4 d3 d2 d1 d0

Comments

1A Manual Cut-off

Register Red

8

0 0 0 0 0 0 0 0 Low DC at RGB output.

1 1 1 1 1 1 1 1 High DC at RGB output.

1B Manual Cut-off

Register Green

8

0 0 0 0 0 0 0 0 Low DC at RGB output.

1 1 1 1 1 1 1 1 High DC at RGB output.

1C Manual Cut-off

Register Blue

8

0 0 0 0 0 0 0 0 Low DC at RGB output.

1 1 1 1 1 1 1 1 High DC at RGB output.

1D CVBS1 Out selection at

0 0 0 0 0 1 1 1 CVBSOUT1 selected at pin 29 SDIP56.

pin 29 SDIP56

8 0 0 0 0 0 0 0 0 Default value, set to 0h when CVBSOUT1 not

used.

1E Not To Be Used

7 000X0000

SIF AGC time

constant (positive mod- 1

ulation)

0 0 0 0 0 0 0 0 Automatic SIFAGC Time constant control.

0 0 0 1 0 0 0 0 Forced Long time constant.

53/86

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