sta335ml STMicroelectronics, sta335ml Datasheet - Page 10

• Manufacturer Part Number: sta335ml
• Description: 2-channel Microless High-efficiency Digital Audio System Sound Terminaltm
• Manufacturer: STMicroelectronics

Functional description
4
4.1
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Functional description
Serial audio interface protocols
The STA335ML serial audio input interfaces with standard digital audio components and
accepts serial data formats. The STA335ML always acts as a slave when receiving audio
input from standard digital audio components. Serial data for two channels is provided using
3 input pins: left/right clock LRCKI (pin 29), serial clock BICKI (pin 28), and serial data SDI
(pin 30).
The available formats are given in
such that FMT = logical 0 gives the I
Figure 6.
Figure 7.
Biclki/
Biclko
Sdatai/
Sdatao
Lrclki/
Lrclko
Lrclki
Bicki
Sdi
I
Left justified
2
S
1
1
2 3
1
2 3
2
3
Doc ID 17638 Rev 3
n
Figure 6
-1
2
n
n
n
S format and FMT = logical 1 gives the left justified.
-1
-1
n
n
and
1 2 3
Figure
1
2
3
7. Pin FMT (pin 2) selects the format
n
-1
n
n
-1
n
STA335ML