CMI-8738 データシートの表示（PDF） - C-Media Electronics
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CMI-8738 Datasheet PDF : 28 Pages
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Ver. 1.2
CMI-8738/PCI-SX AUDIO Specification
Mixer Control / Device Configure Register (can be accessed only by BYTE instruction)
Address 20H
Bit(s) R/W Name
Description
7-0
W
SBVR[7:0]
Programmable SB16 version No.
R
DEV[7:0]
Hardwire device version No.
Bit(s)
7-3
2
1
0
R/W
Name
Reserved
X_ADPCM
PROINV
X_SB16
Description
Address 21H
SB16 ADPCM enable,default disabled.
SBPro Left/Right channel switching.
Indicate device active as SB16 compatible, default SB16
Bit(s) R/W
7-0
Name
IDXdata
Address 22H
Description
Mapping SB compatible mixer INDEX register data port(A2x5h)
Bit(s) R/W
7-0
Name
IDXaddr
Address 23H
Description
Mapping SB compatible mixer INDEX register address port(A2x4h)
Bit(s)
7
6
5
4
3
2
1-0
R/W
Name
Fmmute
Wsmute
SPK4
Rear2front
Waveinl
Waveinr
Reserved
Address 24H
Description
Mute FM
Mute Wave stream
select four speaker mode(emulate Line in to Line out )
exchange rear and front channels’s speaker out
Digital Wave recording Left channel
Digital Wave recording Right channel
Bit(s)
7
6
5
4
R/W
Name
RAUXREN
RAUXLEN
VAUXRM
VAUXLM
Address 25H
Description
Recording source select R-Aux
Recording source select L_Aux
R-AUX mute control
L-AUX mute control
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