Table 16. Serial Audio Input Interface Format; Table 17. Serial Data First Bit - ST Sound Terminal STA333W Manual

STA333W
Serial audio input interface format
Table 16.
Bit
0
1
2
3
Serial data interface
The STA333W audio serial input interfaces with standard digital audio components and
accepts 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 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.
SAIFB
0
1
Table 18.
BICKI
32 * f
S
48* f
S
Serial audio input interface format
R/W RST
R/W 0 SAI0
R/W 0 SAI1
R/W 0 SAI2
R/W 0 SAI3
2
S, MSB first. Available formats are shown in the tables and figure that follow.
Serial data first bit
MSB-first
LSB-first
Support serial audio input formats for MSB first (SAIFB = 0)
SAI [3:0]
0000
0001
0000
0001
0010
0110
1010
1110
Doc ID 13365 Rev 2
Name
Determines the interface format of the input serial
digital audio interface.
Format
SAIFB
2
0 I S 15-bit data
0 Left/right justified 16-bit data
2
0 I S 16- to 23-bit data
0 Left justified 16- to 24-bit data
0 Right justified 24-bit data
0 Right justified 20-bit data
0 Right justified 18-bit data
0 Right justified 16-bit data
Register description
Description
Interface format
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