參數(shù)資料
型號: STi4600
廠商: 意法半導體
英文描述: 6 Channel Dolby AC-3 MPEG1/2 Audio Decoder(六通道音頻解碼器)
中文描述: 6聲道杜比AC - 3 MPEG1 / 2音頻解碼器(六通道音頻解碼器)
文件頁數(shù): 32/52頁
文件大?。?/td> 321K
代理商: STI4600
32/52
STi4600
REGISTER DESCRIPTION
(Cont’d)
5.4.3 PCM Configuration
PCMDIVIDER -
Divider for PCM Clock
Address
Type
Software Reset:
Hardware Reset:
:
:
0x54
R/W
UND
UND
Description
The PCM divider must be set according to the for-
mula below, where Sclk is the bit clock for the
DAC. When
Div
is set to 0,Sclk is equal to Pcm-
Clk.
Div
= (PcmClk/ (2 x Sclk)) -1
When the internal PLL is used, PcmClk=384 x fs.
The formula becomes
Div
= (192 x Fs/Sclk) -1
If Sclk is 32 x Fs (common case with the 16 bit
DAC), Div must be set to 5.
PCMCONF -
PCM Configuration
Address
Type
Software Reset:
Hardware Reset:
:
:
0x55
R/W
NC
UND
Description
ORD
DIF
: PCM Order
: PCM_DIFF. If set to zero, right pad-
ded.
: Invert LRCLK
: FORMAT. If 0 the format is I2S, if 1
the format is Sony format.
: INVERT SCLK
PREC[1:0]: PCM Precision.
0: 16 bit mode (16 slots)
1: 18 bit mode (32 slots)
2: 20 bit mode (32 slots)
3: 24 bit mode (32 slots)
INV
FOR
SCL
PCMCROSS -
CROSS PCM CHANNELS
Address
Type
Software Reset:
Hardware Reset:
:
:
0x56
R/W
NC
UND
Description
CLR[1:0] : Cross left and right channels.
00: When 00, Left channel is mapped
on the left output, Right channel is
mapped on the Right output.
01: When 01, Left channel is duplicat-
ed on both outputs.
10: When 10, Right channel is dupli-
cated on both outputs.
11: When 11, Right channel and Left
channel are toggled.
CSW[1:0]: Cross Centre and Subwoofer
LRS[1:0] : Cross Left and Right surround
PCMFORCECROSS-
Enable PCMCROSS
Address
Type
Software Reset:
Hardware Reset:
:
:
0x7F
R/W
NC
UND
Description
Enables the PCMCROSS Function.
7
6
5
4
3
2
1
0
54
7
6
5
4
3
2
1
0
55
ORD
DIF
INV
FOR SCL
PREC[1:0]
7
6
5
CLR[1:0]
4
3
2
1
0
56
CSW[1:0]
LRS[1:0]
7
6
5
4
3
2
1
0
7F
相關(guān)PDF資料
PDF描述
STI4600 6 CHANNEL DOLBY AC-3 MPEG1/2 AUDIO DECODER
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