sta559bwqs STMicroelectronics, sta559bwqs Datasheet - Page 30

• Manufacturer Part Number: sta559bwqs
• Description: 5-v, 2-a, 2.1-channel High-efficiency Digital Audio System With Qsound Qhd?
• Manufacturer: STMicroelectronics

Register description
5.2
5.2.1
5.2.2
5.2.3
30/66
Configuration register B (addr 0x01)
Serial audio input interface format
Table 17.
Serial data interface
The STA559BWQS audio serial input was designed to interface with standard digital audio
components and to accept a number of serial data formats. STA559BWQS 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 & 2 SDI12.
The SAI register (Configuration Register B - 01h, Bits D3-D0) and the SAIFB register
(configuration register B - 01h, Bit D4) are used to specify the serial data format. The default
serial data format is I
follow.
Serial data first bit
Table 18.
Table 19.
Bit
0
1
2
3
C2IM
D7
1
BICKI
32 fs
RW
RW
RW
RW
RW
SAIFB
Serial audio input interface format
Serial data first bit
Support serial audio input formats for MSB-First (SAIFB = 0)
0
1
C1IM
D6
0
RST
0
0
0
0
2
S, MSB-First. Available formats are shown in the tables and figure that
SAI [3:0]
DSCKE
0000
0001
MSB-first
LSB-first
D5
0
Name
SAI0
SAI1
SAI2
SAI3
SAIFB
SAIFB
0
0
D4
0
Serial audio input interface format: determines the
interface format of the input serial digital audio
interface.
I
Left/Right-justified 16 bit data
2
S 15 bit data
SAI3
D3
0
Format
Description
Interface format
SAI2
D2
0
SAI1
D1
0
STA559BWQS
SAI0
D0
0