AVPro® 5303B

Universal 3-Input A/V Switch Interface

DATA SHEET

Page: 4 of 16

Rev 1.0

SERIAL PORT REGISTER TABLES

Read register Device Address = 10010001 (10100001 when Dev_Addr = 0)

Function

Bits

Description

Not Used

xxxx0000

Not Used

Device ID Code

0010xxxx

This code identifies the device type as the 5303B.

Write Registers: Device Address = 10010000 (10100000 when Dev_Addr = 0). Bold indicates default setting.

Register 0: Signal Source Selection

Register 0:

Register 1: Audio/Video Gain Control

Function

Bits

Description

RBG Gain

xxxxxx00

2

xxxxxx01

1.8

xxxxxx10

1.6

xxxxxx11

1.4

Function

Bits

Description

CVBS Gain

xxxx00xx

2

Xxxx01xx

1.8

Xxxx10xx

1.6

Xxxx11xx

1.4

Function

Bits

Description

Audio Gain

xxx0xxxx

0 dB

xxx1xxxx

6 dB

Video Mode

Bits

Description

BLUE Chroma/Pr/Pb enable

xxxxxxx0

Blue input set for Chroma/Pr/Pb

xxxxxxx1

Blue input set for Y or Blue(DC Restore)

RED Chroma/Pr/Pb enable

xxxxxx0x

Red input set for Chroma/Pr/Pb

xxxxxx1x

Red input set for Y or Red(DC Restore)

FB_OUT set to 0V

xxxxx0xx

FB_OUT for normal operation

xxxxx1xx

FB_OUT SET TO 0V

GN_OUT set to 0V

xxxx0xxx

GN_OUT for normal operation

xxxx1xxx

GN_OUT SET TO 0V

Audio/FUNC Source Selection

Bits

ROUT

LOUT

FUNC_OUT

00xxxxxx

R1

L1

FUNC1

01xxxxxx

R2

L2

FUNC2

10xxxxxx

R3

L3

FUNC3

11xxxxxx

Not Used

Not Used

Not Used