參數(shù)資料
型號: 82C931
廠商: Electronic Theatre Controls, Inc.
英文描述: Plug and Play Integrated Audio Controller
中文描述: 即插即用集成音頻控制器
文件頁數(shù): 48/64頁
文件大?。?/td> 634K
代理商: 82C931
82C931
Page 40
912-3000-035
Revision: 2.1
OPTi
Table 5-10
Codec Indirect Registers
D7
D6
D5
D4
D3
D2
D1
D0
CIR0
MIXOUTL Output Control Register
Default = 00h
Source select:
00 = LINE
01 = CD
10 = MIC
11 = MIXER
MIC +20dB
Gain:
0 = Disable
1 = Enable
Reserved
Gain select for MIXOUTL (dB):
0000 = 0
0001 = +1.5
0010 = +3.0
0011 = +4.5
0100 = +6.0
0101 = +7.5
0110 = +9.0
0111 = +10.5
1000 = +12.0
1001 = +13.5
1010 = +15.0
1011 = +16.5
1100 = +18.0
1101 = +19.5
1110 = +21.0
1111 = +22.5
CIR1
MIXOUTR Output Control Register
Default = 00h
Source select:
00 = LINE
01 = CD
10 = MIC
11 = MIXER
MIC +20dB
Gain:
0 = Disable
1 = Enable
Reserved
Gain select for MIXOUTR (dB):
Refer to CIR0[3:0] for decode.
CIR2
CDL Input Control Register
Default = 88h
Mute:
0 = Disable
1 = Enable
Reserved
Gain select for CDL (dB):
0000 = +12
0001 = +9
0010 = +6
0011 = +3
0100 = 0
0101 = –3
This decode is also applicable for the MIC, LINE, AUX, and
FM inputs.
0110 = –6
0111 = –9
1000 = –12
1001 = –15
1010 = –18
1011 = –21
1100 = –24
1101 = –27
1110 = –30
1111 = –33
Note:
Reserved
CIR3
CDR Input Control Register
Default = 88h
Mute:
0 = Disable
1 = Enable
Reserved
Gain select CDR (dB):
Refer to CIR2[4:1] for decode.
Reserved
CIR4
FML Input Control Register
Default = 88h
Mute:
0 = Disable
1 = Enable
Reserved
Gain select FML (dB):
Refer to CIR2[4:1] for decode.
Reserved
CIR5
FMR Input Control Register
Default = 88h
Mute:
0 = Disable
1 = Enable
Reserved
Gain select FMR (dB):
Refer to CIR2[4:1] for decode.
Reserved
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