CS49300 Family DSP
11.3. Output Data Hardware Configuration
DAO Data Format Of
AUDATA0, 1, 2 (or AUDATA0
for Multichannel Modes)
I2S 24-bit
(Configuration of AUDATA3 as S/PDIF
Hex
The naming convention for the DAO configuration
is as follows:
B Value
0
(default)
Message
0x80027F
0xFC7FFF
0x80027C
0xF01F00
0x80027D
0xF01F00
0x80027E
0xF01F00
0x80017F
0x038000
0x80017C
0x000001
0x80017D
0x000001
0x80017E
0x000001
0x80027F
0xFC7FFF
0x80027C
0xF01F00
0x80027D
0xF01F00
0x80027E
0xF01F00
0x80017F
0x018000
0x80027F
0xFC7FFF
OUTPUT A B C D E
(IEC60958) or Digital Audio in the
2
where the parameters are defined as:
format of I S or Left Justified is
covered in AN162 and AN163)
A - DAO Mode (Master/Slave for LRCLK and
SCLK)
B - Data Format
C - MCLK Frequency
D - SCLK Frequency
E - SCLK Polarity
The following tables show the different values for
each parameter as well as the hex message that
needs to be sent. When creating the hardware
configuration message, only one hex message
should be sent per parameter.
1
Left Justified 24-bit
(Configuration of AUDATA3 as S/PDIF
(IEC60958) or Digital Audio in the
2
format of I S or Left Justified is
covered in AN162 and AN163)
DAO Modes (LRCLK &
SCLK)
MCLK - Slave
Hex
Message
0x80017F
0x400000
A Value
0
(default) SCLK - Slave
LRCLK - Slave
1
MCLK - Slave
SCLK - Master
LRCLK - Master
MCLK - Master
SCLK - Master
LRCLK - Master
0x80027F
0xBFFFFF
2
Multichannel (6 channel)
20-bit Left Justified
(SCLK must be at least 128Fs 0x80027C
for this mode)
(Configuration of AUDATA3 as S/PDIF
2
0x80027F
0xBFDFFF
0xF00000
0x80017C
0x001300
0x80027D
0xF00000
0x80017D
0x001300
0x80027E
0xF00000
0x80017E
0x001300
(IEC60958) or Digital Audio in the
2
format of I S or Left Justified is
Table 22. Output Clock Configuration
(Parameter A)
covered in AN162 and AN163)
Table 23. Output Data Format Configuration
(Parameter B)
76
DS339PP4
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