Analog Devices ADV8003 Hardware Manual page 265

Function
audioif_cc[2:0]
000 
001
010
011
100
101
110
111
i2s_en[3:0], TX2 Main Map, Address 0xF40C[5:2]
This signal is used to enable the I2S pins.
Function
i2s_en[3:0]
0000
1111 
i2s_sf[3:0], TX2 Main Map, Address 0xF415[7:4]
This signal is used to set the sampling frequency for I2S audio. This information is used both by the audio Rx and the pixel repetition.
Other values reserved.
Function
i2s_sf[3:0]
0000 
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
subpkt0_l_src[2:0], TX2 Main Map, Address 0xF40E[5:3]
This signal is used to specify the source of sub packet 0, left channel.
Rev. B, August 2013
Description
Refer to stream header
2 channels
3 channels
4 channels
5 channels
6 channels
7 channels
8 channels
Description
All I2S disabled
All I2S enabled
Description
44.1kHz
Do not use
48kHz
32kHz
Do not use
Do not use
Do not use
Do not use
88.2kHz
Do not use
96kHz
Do not use
176.4kHz
Do not use
192kHz
Do not use
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ADV8003 Hardware Manual