sta335bwqs STMicroelectronics, sta335bwqs Datasheet - Page 30

• Manufacturer Part Number: sta335bwqs
• Description: 2.1-channel High-efficiency Digital Audio System With Qsound Qhd?
• Manufacturer: STMicroelectronics

Register description
7.2
7.2.1
7.2.2
7.2.3
30/72
Configuration register B (addr 0x01)
Serial audio input interface format
Table 17.
Serial data interface
The STA335BWQS audio serial input was designed to interface with standard digital audio
components and to accept a number of serial data formats. STA335BWQS 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 18.
Bit
0
1
2
3
C2IM
D7
1
R/W
RW
RW
RW
RW
SAIFB
SAIn
SAIFB
0
1
C1IM
D6
0
RST
0
0
0
0
DSCKE
D5
0
MSB first
LSB first
2
S, MSB first. Available formats are shown in the tables and
Name
SAI0
SAI1
SAI2
SAI3
SAIFB
D4
0
Determines the interface format of the input serial
digital audio interface.
SAI3
D3
0
Format
SAI2
Description
D2
0
SAI1
D1
0
STA335BWQS
SAI0
D0
0