Analog Devices Advantiv ADV7611 Hardware User's Manual page 55

Hardware User Guide
Notes
•
I2SOUTMODE is effective when the ADV7611 is configured to output I
where the ADV7611 receives audio sample packets
The following audio formats can be output when the ADV7611 receives audio sample packets:
•
L-PCM audio data is output on the audio output pins if the part received audio sample packets with L-PCM encoded audio data. AP
audio output pin can carry only stereo mode in L-PCM, which can be output in I
Figure 14, Figure 15, and Figure 16). The
and left justified respectively on the audio output pins. The ADV7611 can output multichannel control data in I
I2S_TDM_MODE_ENABLE
audio streams up to 48 kHz audio sampling frequency.
•
A stream conforming to the IEC60958 specification when the part receives audio sample packets with L-PCM encoded data (refer to
Figure 17).
•
An AES3 stream if the I2SOUTMODE[1:0]
as raw SPDIF. Each AES3 stream may encapsulate stereo L-PCM audio data or multichannel non L-PCM audio data (for example,
5.1 Dolby Digital).
•
Binary stream on the audio output pins when the part receives audio sample packets with non L-PCM encoded audio data (that is,
AC-3 compressed audio) and if the following configuration is used:
•
I2SOUTMODE must be set to 0x0, 0x01, or 0x2 for I
Figure 15, and Figure 16)
•
MT_MSK_COMPRS_AUD is set to 0
Note that no audio flags are output by the part in that configuration. Each binary stream output by the part may encapsulate stereo
L-PCM audio data or multichannel non L-PCM audio data (for example, 5.1 Dolby Digital).
•
A stream conforming to the IEC61937 specification when the part receives audio sample packets with non L-PCM encoded audio
data (for example, AC-3 compressed audio). The audio outputs can carry an audio stream that may be stereo or multichannel audio
(for example, 5.1 Dolby Digital).
2
Table 12. I S/SPDIF Interface Description
2
I S/SPDIF Interface IO
SPDIF0
I2S0/SDPIF0
I2S1/SDPIF1
I2S2/SDPIF2
I2S3/SDPIF3
SCLK
LRCLK
MCLKOUT
LRCLK LEFT
SCLK
ISx
I2SOUTMODE[1:0]
must be set. In TDM mode, a stream carries multiplexed I
control is set to 0x3 (refer to Figure 18 and Figure 19). Note that AES3 is also referred to
Function
SPDIF audio output
2
I S audio (Channel 1, Channel 2)/SPDIF0
2
I S audio (Channel 3, Channel 4)/SPDIF1
2
I S audio (Channel 5, Channel 6)/PDIF2
2
I S audio (Channel 7, Channel 8)/SPDIF3
Bit clock
Data output clock for left and right channel
Audio master clock output
MSB LSB
32 CLOCK SLOTS
Figure 14. Timing Audio Data Output in I
2
S streams or AES3 streams. This is the case in the situation
2
S, right justified, or left justified mode (refer to
control must be set to 0x0, 0x01 or 0x2 to output I
2
S, right justified, and left justified format, respectively (refer to Figure 14,
RIGHT
MSB
32 CLOCK SLOTS
2
S Mode
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2
S, right justified,
2
S TDM mode and
2
S channels. TDM mode is supported for
LSB
UG-180