CMI-8738 Datasheet, PDF (8/28 Pages) C-Media Electronics – C3DX PCI-Based HRTF 3D Extension Positional Audio Chip

Ver. 1.2
CMI-8738/PCI-SX AUDIO Specification
PCI register
Internal Register Mapping
Function Control Register 0
Bit(s) R/W
Name
Description
Address 00H
31-20
19
18
17
16
15-4
3
2
1
0
Reserved.
RST_CH1
RST_CH0
CHEN1
CHEN0
Reserved
PAUSE1
PAUSE0
CHADC1
CHADC0
Channel1, 1->Reset (Default 0)
Channel0, 1->Reset (Default 0)
Channel1, 1->Enabled,
0->Disabled.
Channel0, 1->Enabled,
0->Disabled.
Channel1, 1->Pause if channel1 is enabled.
Channel0, 1->Pause if channel0 is enabled.
Channel 1 , 1->Recording, 0->Playback
Channel 0,
1->Recording, 0->Playback
Function Control Register 1
Bit(s) R/W
31-16
15-13
12-10
Name
Reserved
DSFC[2:0]
000
001
010
011
100
101
110
111
ASFC[2:0]
000
001
010
011
100
Description
DAC Sampling Frequency Select,
5.512 K
11.025 K
22.05 K
44.1 K
8K
16 K
32 K
48 K
ADC Sampling Frequency Select,
5.512 K
11.025 K
22.05 K
44.1 K
8K
Address 04H
C-MEDIA ELECTRONICS INC. Tel:[phone] Fax:[phone] URL : www.cmedia.com.tw
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