STA333BW_11 STMICROELECTRONICS [STMicroelectronics], STA333BW_11 Datasheet - Page 25
STA333BW_11
Manufacturer Part Number
STA333BW_11
Description
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.STA333BW_11.pdf
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STA333BW
Serial audio input interface format
Table 16.
Serial data interface
The STA333BW audio serial input interfaces with standard digital audio components and
accepts a number of serial data formats. STA333BW 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 SDI.
Bits SAI and bit SAIFB are used to specify the serial data format. The default serial data
format is I
Serial data first bit
Table 17.
Table 18.
0
1
2
3
0
1
32 * fs
48 * fs
Bit
SAIFB
BICKI
R/W
R/W
R/W
R/W
R/W
2
S, MSB first. Available formats are shown in the tables and figure that follow.
Serial audio input interface
Serial data first bit
Support serial audio input formats for MSB-first (SAIFB = 0)
0
0
0
0
RST
MSB-first
LSB-first
0000
0001
0000
0001
0010
0110
1010
1110
SAI [3:0]
SAI0
SAI1
SAI2
SAI3
Doc ID 13773 Rev 3
Name
0
0
0
0
0
0
0
0
SAIFB
Determines the interface format of the input serial
digital audio interface.
I
Left / right-justified 16-bit data
I
Left-justified 16 to 24-bit data
Right-justified 24-bit data
Right-justified 20-bit data
Right-justified 18-bit data
Right-justified 16-bit data
2
2
S 15-bit data
S 16 to 23-bit data
Format
Interface format
Description
Register description
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