STA3398 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
STA3398
STMicroelectronics
'STA3398' PDF : 78 Pages View PDF
STA339BW
Register description
7.2.2
7.2.3
Serial data interface
The STA339BW audio serial input was designed to interface with standard digital audio
components and to accept a number of serial data formats. STA339BW always acts as
slave when receiving audio input from standard digital audio components. Serial data for
two channels is provided using three inputs: left/right clock LRCKI, serial clock BICKI, and
serial data 1 and 2 SDI12.
The SAI bits (D3 to D0) and the SAIFB bit (D4) are used to specify the serial data format.
The default serial data format is I2S, MSB-first. Available formats are shown in the tables
and figure that follow.
Serial data first bit
SAIFB
0
1
Table 19. Serial data first bit
Format
MSB-first
LSB-first
Table 20. Supported serial audio input formats for MSB-first (SAIFB = 0)
BICKI
SAI [3:0]
SAIFB
Interface format
32 * fs
0000
0
0001
0
0000
0
I2S 15-bit data
Left/right-justified 16-bit data
I2S 16 to 23-bit data
0001
0
Left-justified 16 to 24-bit data
48 * fs
0010
0
0110
0
Right-justified 24-bit data
Right-justified 20-bit data
1010
0
Right-justified 18-bit data
1110
0
0000
0
Right-justified 16-bit data
I2S 16 to 24-bit data
0001
0
Left-justified 16 to 24-bit data
64 * fs
0010
0
0110
0
Right-justified 24-bit data
Right-justified 20-bit data
1010
0
Right-justified 18-bit data
1110
0
Right-justified 16-bit data
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