Mclkout Setting; Audio Channel Mode - Analog Devices ADV7610 Hardware User's Manual

Hardware User Guide
OVR_MUX_HBR, Addr 68 (HDMI), Address 0x01[2]
A control to select automatic or manual configuration for HBR outputs. Automatically, HBR outputs are encoded as SPDIF streams. In
manual mode, MUX_HBR_OUT selects the audio output interface.
Function
OVR_MUX_HBR
0 (default)
1
MUX_HBR_OUT, Addr 68 (HDMI), Address 0x01[1]
A control to manually select the audio output interface for HBR data. Valid when OVR_MUX_HBR is set to 1.
Function
MUX_HBR_OUT
0 (default)
1

MCLKOUT SETTING

The frequency of audio master clock MCLKOUT is set using the MCLK_FS_N[2:0] register, as shown in Equation 3, relationship between
MCLKOUT, MCLKFS_N, and f
MCLKOUT = (MCLKFS_N[2:0] + 1) × 128 × f
MCLK_FS_N[2:0], Addr 4C (DPLL), Address 0xB5[2:0]
Selects the frequency of MCLK out as multiple of 128 fs.
Function
MCLK_FS_N[2:0]
000
001 (default)
010
011
100
101
110
111

AUDIO CHANNEL MODE

AUDIO_CH_MD_RAW indicates if 2-channel audio data or multichannel audio data is received.
AUDIO_CH_MD_RAW, IO, Address 0x65[4] (Read Only)
Raw status signal indicating the layout value of the audio packets that were last received.
Function
AUDIO_CH_MD_RAW
0
1
Note that the audio CH_MD_RAW flag is valid for audio sample packets and DSD packets.
AUDIO_CHANNEL_MODE, Addr 68 (HDMI), Address 0x07[6] (Read Only)
Flags stereo or multichannel audio packets. Note stereo packets may carry compressed multichannel audio.
Function
AUDIO_CHANNEL_MODE
0
1
Description
Automatic HBR output control
Manual HBR output control
Description
Override by outputting I 2 S data
Override by outputting SPDIF data
.
s
S
Description
128 fs
256 fs
384 fs
512 fs
640 fs
768 fs
Not valid
Not valid
Description
The last audio packets received have a layout value of 1. (For example, Layout-1 corresponds to
2-channel audio when audio sample packets are received).
The last audio packets received have a layout value of 0. (For example, Layout-0 corresponds to
8-channel audio when audio sample packets are received.)
Description
Stereo audio (may be compressed multichannel)
Multichannel uncompressed audio detected (Channel 3 to Channel 8).
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