Audio Control And Configuration - Analog Devices Advantiv ADV7619 Hardware User's Manual

UG-237
BG_TOTAL_FIELD_HEIGHT[12:0] , Addr 68 (HDMI), Address 0xE8[4:0]; Address 0xE9[7:0] (Read Only)
Background port total field height is a vertical synchronization measurement for the background HDMI port determined by
BG_MEAS_PORT_SEL[2:0].
via the BG_MEAS_REQ control bit.
Function
BG_TOTAL_FIELD_HEIGHT[12:0]
0000000000000 
xxxxxxxxxxxxx
BG_FIELD_HEIGHT[12:0] , Addr 68 (HDMI), Address 0xE6[4:0]; Address 0xE7[7:0] (Read Only)
Background port field height is a vertical synchronization measurement for a background HDMI port determined by
BG_MEAS_PORT_SEL[2:0].
via the BG_MEAS_REQ control bit.
Function
BG_FIELD_HEIGHT[12:0]
0000000000000 
xxxxxxxxxxxxx
BG_HDMI_INTERLACED , Addr 68 (HDMI), Address 0xEA[0] (Read Only)
Background port HDMI input interlace status is a vertical filter measurement for a background HDMI port determined by
BG_MEAS_PORT_SEL[2:0] . The status readback is updated when a update request is made via the BG_MEAS_REQ control bit. This
measurement is only valid when BG_PARAM_LOCK is set to 1.
Function
BG_HDMI_INTERLACED
0 
1
Vertical Filter Locking Mechanism
The HDMI vertical filter locks if the input VSync comes at exactly the same line count for two consecutive frames. The HDMI vertical
filter unlocks if the VSync comes at a different pixels count for two consecutive frames.

AUDIO CONTROL AND CONFIGURATION

The ADV7619 extracts an L-PCM, IEC 61937 compressed DSD or high-bit rate (HBR) audio data stream from their corresponding audio
packets (that is, audio sample, DSD or HBR) encapsulated inside the HDMI data stream.
The ADV7619 also regenerates an audio master clock along with the extraction of the audio data. The clock regeneration is performed by
an integrated DPLL. The regenerated clock is used to output audio data from the 64 stereo sample depth FIFO to the audio interface
configuration pins.
Important
•
The ADV7619 supports the extraction of stereo audio data (noncompressed or compressed) at audio sampling frequency up to
192 kHz
•
The ADV7619 supports the extraction of multichannel audio data
The value represents the total number of lines in a field and is updated when an update request is made
Description
The total number of lines in a Field on the background measurement port
The total number of lines in a Field on the background measurement port
The value represents the number of active lines in a field and is updated when an update request is made
Description
The number of active lines in a Field on the background measurement port
The number of active lines in a Field on the background measurement port
Description
Progressive Input
Interlaced Input
Rev. A | Page 58 of 204
Hardware User Guide