Analog Devices Advantiv ADV7619 Hardware User's Manual page 84

UG-237
Audio InfoFrame Registers
Table 20 provides the list of readback registers available for the Audio InfoFrame. Refer to the EIA/CEA-861D specifications for a detailed
explanation of the audio InfoFrame fields.
Table 20. Audio InfoFrame Registers
InfoFrame Map Address
0xE3
0xE4
0xE5
0x1C
0x1D
0x1E
0x1F
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
1
As defined by the EIA/CEA-861D specifications.
The audio InfoFrame registers are considered valid if the following two conditions are met:
•
AUDIO_INFO_RAW is 1.
•
AUD_INF_CKS_ERR_RAW is 0. This condition applies only if ALWAYS_STORE_INF is set to 1.
AUDIO_INFO_RAW , IO, Address 0x60[1] (Read Only)
Raw status of audio InfoFrame detected signal.
Function
AUDIO_INFO_RAW Description
0 (default) No AVI InfoFrame has been received within the last three VSyncs or since the last HDMI packet detection reset.
1 An Audio InfoFrame has been received within the last three VSyncs. This bit will reset to zero on the fourth VSync
leading edge following an Audio InfoFrame, after an HDMI packet detection reset or upon writing to
AUD_PACKET_ID.
Access Type Register Name
R/W AUD_PACKET_ID[7:0]
R AUD_INF_VERS
R AUD_INF_LEN
R AUD_INF_PB_0_1
R AUD_INF_PB_0_2
R AUD_INF_PB_0_3
R AUD_INF_PB_0_4
R AUD_INF_PB_0_5
R AUD_INF_PB_0_6
R AUD_INF_PB_0_7
R AUD_INF_PB_0_8
R AUD_INF_PB_0_9
R AUD_INF_PB_0_10
R AUD_INF_PB_0_11
R AUD_INF_PB_0_12
R AUD_INF_PB_0_13
R AUD_INF_PB_0_14
Rev. A | Page 84 of 204
Hardware User Guide
1
Byte Name
Packet type value
InfoFrame version number
InfoFrame length
Checksum
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
Data Byte 11
Data Byte 12
Data Byte 13