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參數(shù)資料
| 型號： | ES1371 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | ENSONIQ AudioPCI 97 digital controller |
| 中文描述： | ENSONIQ AudioPCI 97數(shù)字控制器 |
| 文件頁數(shù)： | 21/37頁 |
| 文件大?。?/td> | 103K |
| 代理商： | ES1371 |
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ENSONIQ Proprietary Information
ENSONIQ Proprietary Information
ENSONIQ AudioPCI 97 Specification Rev 1.1 Oct 1, 1997
21
7.5.
CODEC Interface
The CODEC interface register is a 32 bit register that provides access to the AC97 CODEC control
registers. This register is a pseudo read/write and must be accessed as a longword. A write to this register
will initiate a CODEC register read/write operation. A read from this register is used to read a CODEC
register that was initiated by a previous write to the CODEC interface register.
CODEC Write
Register
Addressable as longword
Power on reset value 00000000H
Bit(s)
R/W
31:24
W
23
W
Address 14H
Direct Mapped
Name
ZERO
PIRD
Function
These bits are always zeros.
AC97 Codec register read/write control bit
0 - Write AC97 CODEC register.
1 - Read AC97 CODEC register.
These bits are the address of the AC97 CODEC register to be
read/written.
These bits are the data value to be written into the AC97 CODEC
register. Set to zero for a AC97 CODEC register read.
22:16
W
PIADD
15:0
W
PIDAT
CODEC Read
Register
Addressable as longword
Power on reset value 00000000H
Bit(s)
R/W
31
R
Address 14H
Direct Mapped
Name
RDY
Function
This bit when high indicates that this register contains valid read
data from the AC97 CODEC register file.
This bit when high indicates that a register read/write to the AC97
CODEC is in progress.
0 - AC97 CODEC register interface inactive.
1 - AC97 CODEC register access in progress.
These bits always read back as zeros.
AC97 Codec register read/write control bit
0 - Write AC97 CODEC register.
1 - Read AC97 CODEC register.
These bits are the address of the AC97 CODEC register for the read
register operation.
These bits are the data value read from the AC97 CODEC register
at the above address.
30
R
WIP
29:24
23
R
R
ZERO
PORD
22:16
R
POADD
15:0
R
PODAT
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| ES14 | 制造商:Baumer Electric Ag 功能描述: |
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