STA310 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'STA310' PDF : 90 Pages View PDF
STA310
The minimum latency delay is 0; the maximum laten-
cy delay is the time to decode a frame:
Bitfield
Description
Value
Dolby Digital: L = 1536 samples / Sampling
frequency
MPEG:
L = 1152 samples / Sampling
frequency
SPDIF_DTDI
SPDIF data-type information
7
6 5 432 1
0
PFC DTD
INF
Address: 0x7F
Type: R/W
Software Reset: NC
Hardware: Reset: UND
Description::
Bitfield
Description
DTDI[4:0] in Dolby Digital mode: 4 3 2 1 0
0 0 BSMOD
[2..0]
in MPEG mode:
432 1 0
0 0 0 DR K
DTD
1: Data-type dependent information used
for the SPDIF in compressed mode, can be
set by the user.
Refer to IEC958 standard for more
information.
0: Transmitted DTDI are extracted from the
stream.
PFC
1: PCMCROSS function enabled
AUTODETECT_ENA
S/PDIF Autodetection Enable
7
6 5 432
Address: 0xE0
Type: R/W
Software Reset: 0
1
0
ENA
Hardware: Reset: UND
Description:
The feature is only available for STA310 cut 2.0. This
register is used to enable the autodetection on the S/
PDIF. When high, the autodetection is present. When
low, autodetection is disable.
The STA310 cut 2.0 is able to detect the following au-
dio format changes on the S?PDIF input.
FROM
AC3
AC3
MPEG
MPEG
PCM
PCM
TO
PCM
MPEG
AC3
PCM
AC3
MPEG
The host must respond to the RST and LCK interrupt
in order for the STA310 to take into account the
change of the audio format.
AUTODETECT_SENS
S/PDIF Autodetection Sensitivity
7
6
5
4
32
1
0
SENS
Address: 0xE1
Type: R/W
Software Reset: 0
Hardware: Reset: UND
Description:
The feature is only available for STA310 cut 2.0. This
register is used to configure the autodetection sensi-
tivity. The lower is SENS, the faster is the autodetec-
tion. Typical value is 0.
AUTODETECT_ ALIGN
S/PDIF Autodetection Alignement
Address: 0xE2
Type: R/W
Software Reset: 0
Hardware: Reset: UND
Description:
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