Audio Content Protection Packet; Table 99: Audio Infoframe Configuration Registers; Table 100: Acp Packet Configuration Registers - Analog Devices ADV7850 Hardware Manual

HDMI Tx Main Map
Address
0x70
0x71
0x72
0x73
0x74
0x75
0x76
0x77
0x78
0x79
0x7A
0x7B
0x7C
1 As defined in the latest CEA 861 specification
2. Only used when auto_checksum_en = 0

Audio Content Protection Packet

13.12.12
The Audio Content Protection (ACP) packet is used for transmitting content related information about the active audio stream. Use of the
ACP packet is 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
an ACP packet to the downstream sink by setting
transmits an APC packets once every two video fields.
acp_pkt_en, Addr B8 (Main), Address 0x40[4]
This control is used to enable an ACP packet.
Function
acp_pkt_en
0 
1
HDMI Tx Packet
Map Address
0x40
0x41
0x42
0x43
0x44
0x45
0x46
0x47
0x48
0x49
0x4A
0x4B
0x4C
0x4D
0x4E
0x4F
0x50
0x51
0x52
0x53
Rev. A May 2012

Table 99: 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
Description
Disable ACP packet
Enable ACP packet

Table 100: ACP Packet Configuration Registers

Access Type Field Name
R/W acp_hb0[7:0]
R/W acp_hb1[7:0]
R/W acp_hb2[7:0]
R/W acp_pb0[7:0]
R/W acp_pb1[7:0]
R/W acp_pb2[7:0]
R/W acp_pb3[7:0]
R/W acp_pb4[7:0]
R/W acp_pb5[7:0]
R/W acp_pb6[7:0]
R/W acp_pb7[7:0]
R/W acp_pb8[7:0]
R/W acp_pb9[7:0]
R/W acp_pb10[7:0]
R/W acp_pb11[7:0]
R/W acp_pb12[7:0]
R/W acp_pb13[7:0]
R/W acp_pb14[7:0]
R/W acp_pb15[7:0]
R/W acp_pb16[7:0]
Default Value Field or Byte Name
0b001 Audio InfoFrame InfoFrame version number
0b01010 Audio InfoFrame InfoFrame length
0b00000000 Audio InfoFrame Checksum
0b00000000 Audio InfoFrame Data Byte 1
0b00000000 Audio InfoFrame Data Byte 2
0b00000000 Audio InfoFrame Data Byte 3
0b00000000 Audio InfoFrame Data Byte 4
0b00000000 Audio InfoFrame Data Byte 5
0b00000000 Audio InfoFrame Data Byte 6
0b00000000 Audio InfoFrame Data Byte 7
00000000 Audio InfoFrame Data Byte 8
00000000 Audio InfoFrame Data Byte 9
00000000 Audio InfoFrame Data Byte 10
Table
to 1. When the transmission of ACP packets is enabled, the ADV7850
Default Value
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
0b00000000
378
1
2
100. The user can enable the transmission of
Byte Name
1
ACP Header Byte 0
ACP Header Byte 1
ACP Header Byte 2
ACP Data Byte 0
ACP Data Byte 1
ACP Data Byte 2
ACP Data Byte 3
ACP Data Byte 4
ACP Data Byte 5
ACP Data Byte 6
ACP Data Byte 7
ACP Data Byte 8
ACP Data Byte 9
ACP Data Byte 10
ACP Data Byte 11
ACP Data Byte 12
ACP Data Byte 13
ACP Data Byte 14
ACP Data Byte 15
ACP Data Byte 16
ADV7850