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STA333W 데이터시트(PDF) 23 Page - STMicroelectronics

부품명 STA333W
상세설명  2-channel high-efficiency digital audio system
PDF  42 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA333W 데이터시트(HTML) 23 Page - STMicroelectronics

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STA333W
Register description
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7.1.3
Serial data interface
The STA333W audio serial input was designed to interface with standard digital audio
components and to accept a number of serial data formats. STA333W always acts a slave
when receiving audio input from standard digital audio components. Serial data for two
channels is provided using 3 inputs: left/right clock LRCKI, serial clock BICKI, and serial
data 1 and 2 SDI12.
The SAI register (configuration register B - 0x01, bits D3-D0) and the SAIFB register
(configuration register B - 0x01, 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
Table 16.
SAIFB
Format
Notes
0
MSB-first
Default value
1
LSB-first
Default value
Table 17.
Support serial audio input formats for MSB first (SAIFB = 0)
BICKI
SAI [3:0]
SAIFB
Interface format
32fs
0000
0
I2S 15-bit data
0001
0
Left/right justified 16-bit data
48fs
0000
0
I2S 16 - 23-bit data
0001
0
Left justified 16 - 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
64fs
0000
0
I2S 16 - 24-bit data
0001
0
Left justified 16 - 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



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