ADV8003 Hardware Manual
Rev. B, August 2013
280
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
to 1. When the transmission of audio InfoFrame
is enabled, the ADV8003 transmits an audio InfoFrame once every two video fields.
provides the list of registers that can be used
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
Description
0
Disable audio InfoFrame
1
Enable audio InfoFrame
Table 66: Audio InfoFrame Configuration Registers
HDMI Tx Main
Map Address
Bit Location
Access Type
Default Value
Field or Byte Name
1
0xEC70
[2:0]
R/W
0b001
InfoFrame version number
0xEC71
[4:0]
R/W
0b01010
InfoFrame length
0xEC72
[7:0]
R/W
0b00000000
Checksum
2
0xEC73
[7:0]
R/W
0b00000000
Data Byte 1
0xEC74
[7:0]
R/W
0b00000000
Data Byte 2
0xEC75
[7:0]
R/W
0b00000000
Data Byte 3
0xEC76
[7:0]
R/W
0b00000000
Data Byte 4
0xEC77
[7:0]
R/W
0b00000000
Data Byte 5
0xEC78
[7:0]
R/W
0b00000000
Data Byte 6
0xEC79
[7:0]
R/W
0b00000000
Data Byte 7
0xEC7A
[7:0]
R/W
00000000
Data Byte 8
0xEC7B
[7:0]
R/W
00000000
Data Byte 9
0xEC7C
[7:0]
R/W
00000000
Data Byte 10
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
. The user can enable the transmission of an
ACP packet to the downstream sink by setting the
bit. When the transmission of ACP packets is enabled, the ADV8003
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.
Summary of Contents for ADV8003
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