UG-707
ADV8005 Hardware Reference Manual
mclk_ratio[1:0]
, TX2 Main Map,
Address 0xF40A[1:0]
This signal is used to specify the ratio between the audio sampling frequency and the clock described using the N and CTS values.
Function
mclk_ratio[1:0]
Description
00
128*fs
01 (default)
256*fs
10
384*fs
11
512*fs
mclk_en
, TX2 Main Map,
Address 0xF40B[5]
This bit is used to select the audio master clock that is used by the audio block.
Function
mclk_en
Description
0 (default)
Use internally generated MCLK
1
Use external MCLK
Table 58: Valid Configuration for
audio_input_sel Value
audio_mode Value Options
Corresponding Configuration
0b010
0b0x
DSD in raw mode
0b1x
DSD in SDIF-3 mode
0b011
0b00
HBR input as 4 streams, with Bi-Phase Mark (BPM) encoding
0b01
HBR input as 4 stream, without BPM encoding
0b10
HBR input as 4 stream, without BPM encoding
0b11
HBR input as 1 stream, without BPM encoding
Table 59: Audio Input Format Summary
Input
Output
audio_input
_sel Value
audio_mode
Value
I2s_format
Value
Audio
Input
Signal
Clock Pins
Encoding
Input Pin
Mapping
Format
Packet Type
0b000
0bXX
0b00
I2S[3:0]
SCLK,
LRCLK,
MCLK
1
Normal
AUD_IN[4:0]
AUD_IN[5]
SCLK
MCLK
Standard
I2S
Audio
Sample
Packet
0b000
0bXX
0b01
I2S[3:0]
SCLK,
LRCLK,
MCLK
1
Normal
AUD_IN[4:0]
AUD_IN[5]
SCLK
MCLK
Right
justified
Audio
Sample
Packet
0b000
0bXX
0b10
I2S[3:0]
SCLK,
LRCLK,
MCLK
1
Normal
AUD_IN[4:0]
AUD_IN[5]
SCLK
MCLK
Left justified Audio
Sample
Packet
0b000
0bXX
0b11
I2S[3:0]
SCLK,
LRCLK,
MCLK
1
Normal
AUD_IN[4:0]
AUD_IN[5]
SCLK
MCLK
AES3 direct
Audio
Sample
Packet
0b001
0b00
0bXX
SPDIF
MCLK
1
Biphase
Mark
AUD_IN[0]
MCLK
IEC60958 or
IEC61937
Audio
Sample
Packet
0b010
0b1X
0bXX
DSD[5:0]
SCLK
Normal
AUD_IN[5:0]
SCLK
DSD
DSD Packet
0b010
0b1X
0bXX
DSD[5:0]]
SCLK
SDIF-3
AUD_IN[5:0]
SCLK
DSD
DSD Packet
0b011
0b00
0bXX
I2S[3:0]
MCLK
Biphase
Mark
AUD_IN[4:0]
MCLK
IEC61937
HBR Packet
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