ST18-AU1 STMICROELECTRONICS [STMicroelectronics], ST18-AU1 Datasheet - Page 21

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

Table 4.1
Mnemonic
HostDynRngeCompMode
HostDynRngeCutScaleFac
HostDynRngeBstScaleFac
HostPcmScaleFac
HostOutLfeOn
HostSpdifOutStrmFormat
HostSpdifOutputLatency
HostSpdifSmpteFrmRat-
Cod
Write commands
Opcode
0A
0B
0C
0D
0E
07
08
09
Size
(bits)
8
16
16
16
8
8
16
16
Command description and Parameter values
Dynamic Range Compression Mode
Line-out Mode
Custom Mode, Analog Dialnorm
Custom Mode, Digital Dialnorm (default)
RF Demod Mode
Dynamic Range Compression Cut Scale Factor
0 to 0x7FFF (at ‘0’ the compression is minimum, at
0x7fff the compression is maximum).
(default: 0x 7fff)
Dynamic Range Compression Boost Scale Factor
0 to 7FFF (at ‘0’ the boost is minimum, at 0x7fff the
boost is maximum).
(default: 0x7fff)
PCM Scale Factor
0 to 7FFF (default)
Output LFE Present
Off (default)
On
SPDIF Output Stream Format
(the SPDIF output can send either the PCM decoded
output, or the input encoded elementary stream)
AC3/MPEG (default)
PCM
SPDIF Output Latency
Delay between the decoder and the bitstream sent via
the SPDIF output. The delay is expressed in multiples
of 1/Fs, where Fs is the sample frequency. The delay is
signed.
0xffff to 0x7ffff (default: 0)
SPDIF SMPTE Frame Rate Code
not indicated
24/1001
24
25
30/1001 (default)
30
50
60/1001
60
ST18-AU1
00
01
02
03
00
01
00
01
00
01
02
03
04
05
06
07
08
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