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參數(shù)資料
| 型號(hào)： | ALC202 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; No. of Contacts:100; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:22; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:22-35 RoHS Compliant: No |
| 中文描述： | AC\u0026#39;97音頻編解碼器 |
| 文件頁(yè)數(shù)： | 14/29頁(yè) |
| 文件大?。?/td> | 598K |
| 代理商： | ALC202 |
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Preliminary
Avance Logic, Inc.
ALC202
-
14 -
Rev0.62
http://www.realtek.com.tw
14
R
DRS (Double Rate S/PDIF)
ALC202 doesn’t support double rate S/PDIF, this bit is always 0.
SPSR[1:0] (S/PDIF Sample Rate)
00: sample rate set to 44.1KHz , Fs[
0:3
]=0000
01: reserved
10: sample rate set to 48.0KHz , Fs[
0:3
]=0100 (default)
11: sample rate set to 32.0KHz , Fs[
0:3
]=1100
LEVEL (Generation Level)
CC[6:0] (Category Code)
PRE (Preemphasis)
0 : None 1: filter preemphasis is 50/15 usec
COPY (Copyright)
0: Not asserted 1: Asserted
/AUDIO (Non-Audio Data type)
0: PCM data 1: AC3 or other digital non-audio data
PRO (Professional or Consumer format)
0: consumer format 1: professional format
ALC202 supports consumer channel status format, this bit is always 0.
13:12
R/W
11
10:4
3
R/W
R/W
R/W
2
R/W
1
R/W
0
R
The consumer channel status block (bit0~bit31):
0
1
PRO=0
/AUDIO
8
9
CC0
CC1
16
17
0
0
24
25
Fs0
Fs1
2
3
4
0
5
0
6
0
7
0
COPY
10
CC2
18
0
26
Fs2
PRE
11
CC3
19
0
27
Fs3
12
CC4
20
0
28
0
13
CC5
21
0
29
0
14
CC6
22
0
30
0
15
LEVEL
23
0
31
0
Vendor Define Registers:
MX6A
Bit
15:14
13
Miscellaneous Control
Type
Reserved.
R/W
DAC PCM(n+1) Slot# Select (When DRA=1)
0: PCM(n+1) captured from Slot-10/11. (Default in AC’97 rev2.2)
1: PCM(n+1) captured from Slot-7/8.
R/W
S/PDIF Source
0: S/PDIF data is from controller (default)
1: S/PDIF data is from ADC
Reserved
R/W
SPDIF Out Volume Control – Mute Bit
0: Normal 1: Clamp SPDIF output data to 0. (Mute)
R/W
SPDIF Out Volume Control – in 6 dB Step Attenuation
000: 0dB
001: - 6dB
010: -12dB
…
111: -42dB
The default source of S/PDIF output is data sent by controller. When this bit is set, S/PDIF data
comes from ALC202’s ADC. To keep data concurrence,
software must guarantee the sample rates
in MX32 and MX3A[13:12] are the same
. SPCV is no more a validity for S/PDIF configuration. If
Default: 0000h
Function
12
11:4
3
2:0
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