ST18-AU1 STMICROELECTRONICS [STMicroelectronics], ST18-AU1 Datasheet - Page 23

• Manufacturer Part Number: ST18-AU1
• Description: SIX-CHANNEL DOLBY AC3/MPEG2 AUDIO DECODER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Table 4.2
Mnemonic
HostVersion
HostI2cStatus
HostInputStatus
HostOutputStatus
HostSPDIFStatus
HostOpMode
HostAudDecodErrorStatus
HostInputSamplFreq
HostInputDatRate
HostInputMultiChanMode
HostKaraokCapBitstrm
Read commands
Opcode
4A
40
41
42
43
44
45
46
47
48
49
Size
(bits)
16
8
8
8
8
8
16
8
8
8
8
Command description and parameter value
Version number
I2cStatus
No error
Error
InputStatus
No error
Overflow
Underflow
OutputStatus
No error
Underflow
Overflow
Error decoder
SPDIF Status
No error
Error
OutputMode
(Refer to output channel configuration)
Audio Decoder Error Status
No error
Sync word
Sample frequency
Frame size
Number of channels
Decoder errors
Crc
Input Sampling Frequency
Sampling frequency specified by the bitstream.
For AC-3 fscod is returned.
Input Data Rate
Data rate specified by the bitstream.
For AC-3 frmsizecod is returned.
InputMultiChannelMode
For AC-3 acmod is returned.
Karaoke Bitstream
Non Karaoke
Karaoke
ST18-AU1
5 f
00
01
00
01
02
00
01
02
04
00
01
10
00
01
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0
1
2
3
4