參數(shù)資料
型號: CMI-8738
廠商: C-Media Electronics Inc.
英文描述: C3DX PCI-Based HRTF 3D Extension Positional Audio Chip
中文描述: C3DX基于PCI的HRTF的3D定位音效芯片擴(kuò)展
文件頁數(shù): 5/28頁
文件大?。?/td> 512K
代理商: CMI-8738
C-MEDIA ELECTRONICS INC. Tel:886-2-87731100
Fax:886-2-87732211
URL : www.cmedia.com.tw
Products and company names mentioned here are the trademarks of their respective owners.
CMI-8738/PCI-SX AUDIO Specification
Ver. 1.2
18-17
Reserved
16
VIDWPDSB
Sub ID write protect disabled. (default 0)
15
Reserved
14
MASK_EN
Activate channel mask on Legacy DMA.
0
Disabled
1
Enabled
13
VIDWPDSB
Write Protect of HSP Configuration Sub ID.
0
Protect.
1
No protect.
12
SFILENB
Let software contrl filter stepping at the front end DAC.
11-5
Reserved
4
MIDSMP
Enable 1/2 interpolation at the Front end DAC..
3-2
UPDDMA[1:0]
For every the number of samples to notify updating TDMA position.
00 Every 2048 samples
01 Every 1024 samples
10 Every 512 samples.
11 Every 256 samples.
1-0
TWAIT[1:0]
For controling the length of legacy BUS cycle.
00
3 PCICLK.
01
18 PCICLK.
10
24 PCICLK
11
32 PCICLK
* Notice
REQ_SQ[2:0]
States of BusRequest Engine.
MM_DATA
Bus Master
is using Bus.
MIDLE
Bus Master is not using Bus.
REQA/REQB
Channel 0/1 BusMaster Request.
GNTA/GNTB
Channel 0/1 BusMaster Grant.
ADRQ/BDRQ
Channel 0/1 DMA
Request.
ADACK/BDACK
Channel 0/1 DMA
Acknoledge.
AIRQ/BIRQ
Channel 0/1 Interrupt.
CX/BX
Channel 0/1 Busy.
T - DMA Position
Address
1CH
Bit(s)
R/W
Name
Description
31-16
R
TDMACN T
Current Byte/Word Count of DMA channel.
15-0
R
TDMAADR
Current Address of DMA channel.
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