STA308
Serial Audio Input Interface Format
BIT
2
3
4
R/W
R/W
R/W
R/W
RST
0
0
0
NAME
SAI0
SAI1
SAI2
DESCRIPTION
Serial Audio Input Interface Format : Determines the
interface format of the input serial digital audio interface.
The STA308 features a configurable digital serial audio interface. The settings of the SAIx bits determine how
the input to this interface is interpreted. Six formats are accepted.
Table 3. Interface format as a function of SAI bits.
SAI(2..0)
000
001
010
011
100
101
I
2
S
Left-Justified Data
Right-Justified 16-bit Data
Right-Justified 18-bit Data
Right-Justified 20-bit Data
Right-Justified 24-bit Data
Interface Format
Figure 2. Serial Audio Signals
SAI=000 I S
LRCLK
Left
Right
2
SCLK
SDATA
MSB
LSB
MSB
LSB
MSB
SAI=001 Left Justified
LRCLK
Left
Right
SCLK
SDATA
MSB
LSB
MSB
LSB
MSB
SAI=010 to 101 Right Justified
LRCLK
Left
Right
SCLK
SDATA
MSB
LSB
MSB
LSB
MSB
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