Audio Infoframe; Acp Packet; Table 66: Audio Infoframe Configuration Registers - Analog Devices ADV8003 Hardware Manual

6.11.5. Audio InfoFrame

The audio InfoFrame allows the sink to identify the characteristics of an audio stream before the channel status information is available.
The ADV8003 can be configured to transmit audio InfoFrame by setting
is enabled, the ADV8003 transmits an audio InfoFrame once every two video fields.
to configure audio InfoFrames.
audioif_pkt_en, TX2 Main Map, Address 0xF444[3]
This bit is used to enable the Audio InfoFrame.
Function
audioif_pkt_en
0
1 
HDMI Tx Main
Map Address
0xEC70
0xEC71
0xEC72
0xEC73
0xEC74
0xEC75
0xEC76
0xEC77
0xEC78
0xEC79
0xEC7A
0xEC7B
0xEC7C
1
As defined in the latest CEA 861 specification
2 Only used when auto_checksum_en = 0

6.11.6. ACP Packet

The Audio Content Protection (ACP) packet is used for transmitting content related information about the active audio stream. Using the
ACP packet will be defined in the license agreement of the protected audio stream.
The contents of the ACP packet can be set via the set of Packet Map registers listed in
ACP packet to the downstream sink by setting the
transmits an APC packets once every two video fields.
acp_pkt_en, TX2 Main Map, Address 0xF440[4]
This bit is used to enable the ACP Packet.
Rev. B, August 2013
Description
Disable audio InfoFrame
Enable audio InfoFrame

Table 66: Audio InfoFrame Configuration Registers

Bit Location Access Type
[2:0] R/W
[4:0] R/W
[7:0] R/W
[7:0] R/W
[7:0] R/W
[7:0] R/W
[7:0] R/W
[7:0] R/W
[7:0] R/W
[7:0] R/W
[7:0] R/W
[7:0] R/W
[7:0] R/W
acp_pkt_en
audioif_pkt_en to 1. When the transmission of audio InfoFrame
Table 66
Default Value
0b001
0b01010
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
00000000
00000000
00000000
Table
bit. When the transmission of ACP packets is enabled, the ADV8003
280
ADV8003 Hardware Manual
provides the list of registers that can be used
Field or Byte Name
1
InfoFrame version number
InfoFrame length
Checksum 2
Data Byte 1
Data Byte 2
Data Byte 3
Data Byte 4
Data Byte 5
Data Byte 6
Data Byte 7
Data Byte 8
Data Byte 9
Data Byte 10
67. The user can enable the transmission of an