CMI-8738 查看數據表（PDF） - C-Media Electronics

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CMI-8738

C3DX PCI-Based HRTF 3D Extension Positional Audio Chip

C-Media Electronics 

Ver. 1.2

CMI-8738/PCI-SX AUDIO Specification

Legacy SB compatible mixer

Index D7 D6 D5 D4 D3 D2 D1 D0

0x00

Reserved

0x04

Wave volume left channel

Wave volume right channel

0x0A

Mic volume

0x22

Master volume left channel

Master volume right channel

0x26

FM volume left channel

FM volume right channel

0x28 Analog-CD volume left channel Analog-CD volume right channel

0x2E

Line-in volume left channel

Line-in volume right channel

0x30

Reserved

0x31

Reserved

0x32

Reserved

0x33

Reserved

0x34

Reserved

0x35

Reserved

0x36

Reserved

0x37

Reserved

0x38

Reserved

0x39

Reserved

0x3A

Reserved

0x3B PC spk volume

0x3C

Output muting controls

Line L Line R CD L CD R Mic

0x3D

Recording left channel controls

FM L FM R Line L Line R CD L CD R Mic

0x3E

Recording right channel controls

FM L FM R Line L Line R CD L CD R Mic

0x3F

Reserved

0x40

Reserved

0x41

Reserved

0x42

Reserved

0x43

Reserved

0x44

Reserved

0x45

Reserved

0x46

Reserved

0x47

Reserved

0x80

IRQ channel (read only)

IRQ10 IRQ7 IRQ5 IRQ2(9)

0x81 16 bit DMA channel (read only) 8 bit DMA channel (read only)

DMA 7

DMA 5

DMA 3

DMA 1 DMA 0

0x82

Interrupt status (read only)

MPU-40 16bit 8bit

1

DMA DMA

z Please do not write any values into reserved registers

C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw

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