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STA380WS Datasheet(PDF) 26 Page - STMicroelectronics

Part # STA380WS
Description  Sound Terminal 2-channel high-efficiency digital audio system
PDF  48 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA380WS Datasheet(HTML) 26 Page - STMicroelectronics

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STA380WS
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DocID024426 Rev 1
Serial audio input interface format
Serial data interface
The STA380WS audio serial input interfaces with standard digital audio components and
accepts a number of serial data formats. STA380WS always acts a 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 SDI.
Bits SAI and bit SAIFB 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
Table 16. Serial audio input interface format
Bit
R/W
RST
Name
Description
0
R/W
0
SAI0
Determines the interface format of the input serial
digital audio interface.
1
R/W
0
SAI1
2
R/W
0
SAI2
3
R/W
0
SAI3
Table 17. Serial data first bit
SAIFB
Format
0
MSB-first
1
LSB-first
Table 18. Support serial audio input formats for MSB first (SAIFB = 0)
BICKI
SAI [3:0]
SAIFB
Interface format
32 * fS
0000
0
I2S 15-bit data
0001
0
Left/right justified 16-bit data
48* fS
0000
0
I2S 16- to 23-bit data
0001
0
Left-justified 16- to 24-bit data
0010
0
Right-justified 24-bit data
0110
0
Right-justified 20-bit data
1010
0
Right-justified 18-bit data
1110
0
Right-justified 16-bit data
64* fS
0000
0
I2S 16- to 24-bit data
0001
0
Left-justified 16- to 24-bit data
0010
0
Right-justified 24-bit data
0110
0
Right-justified 20-bit data
1010
0
Right-justified 18-bit data
1110
0
Right-justified 16-bit data
Obsolete
Product(s)
- Obsolete
Product(s)



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