sta335bwsqs13tr STMicroelectronics, sta335bwsqs13tr Datasheet - Page 28
sta335bwsqs13tr
Manufacturer Part Number
sta335bwsqs13tr
Description
2.1-channel, High-efficiency Digital Audio System With Qsound Qhd
Manufacturer
STMicroelectronics
Datasheet
1.STA335BWSQS13TR.pdf
(70 pages)
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Register description
6.2.2
6.2.3
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Serial data interface
The STA335BWSQS audio serial input was designed to interface with standard digital audio
components and to accept a number of serial data formats. STA335BWSQS 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 1 and 2 SDI12.
The SAI register (configuration register B (0x01), bits D3 to 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 I
figure that follow.
Serial data first bit
Table 17.
Table 18.
SAIFB
BICKI
32fs
48fs
64fs
0
1
SAIFB
Support serial audio input formats for MSB-first (SAIFB = 0)
MSB-first
LSB-first
SAI [3:0]
0000
0001
0000
0001
0010
0110
1010
1110
0000
0001
0010
0110
1010
1110
2
S, MSB-first. Available formats are shown in the tables and
SAIFB
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
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
2
S 15-bit data
S 16 to 23-bit data
S 16 to 24-bit data
Format
Interface format
STA335BWSQS
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