CMI8738-MX Datasheet, PDF (19/32 Pages) C-Media Electronics – PCI-6CH C3DX series /PCI-Based HRTF 3D Extension Positional Audio Chip

CMI8738
PCI-6CH C3DX series /PCI-Based HRTF 3D Extension Positional Audio Chip
T - DMA Position
Bit(s) R/W
31:16 R
15:0
R
Name
TDMACN T
TDMAADR
Description
Current Byte/Word Count of DMA channel.
Current Address of DMA channel.
Address 1CH
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) R/W
7-3
2
1
0
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) R/W
7
6
5
4
3
2
1
0
Address 24H
Name
Description
Fmmute
Mute FM
Wsmute
Mute Wave stream
REAR2LIN Route REAR ch. Output to LINE-IN. default 0.
Rear2front exchange rear and front channels‟s speaker out
Waveinl
Digital Wave recording Left channel
Waveinr
Digital Wave recording Right channel
X3DEN
3D surround enable.
Cdplay
SPDIF/IN PCM to DAC enable
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