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參數(shù)資料
| 型號： | STAC9708 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | Codec |
| 英文描述： | Multi-Channel AC97 Codec With Multi-Codec Option |
| 中文描述： | 多聲道AC97編解碼器與多編解碼器方案 |
| 文件頁數(shù)： | 32/56頁 |
| 文件大小： | 247K |
| 代理商： | STAC9708 |
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SigmaTel, Inc.
Preliminary
STAC9708/11
32
10/02/98
Table 18
. Multi-Channel Programming Register
MC1, MC0
PCM OUT
LEFT
PCM OUT
RIGHT
PCM2
LEFT
PCM2
RIGHT
0, 0
Slot 3
Slot 4
Slot 7
Slot 8
0, 1
Slot 7
Slot 8
Slot 6
Slot 9
1, 0
Slot 6
Slot 9
Slot 7
Slot 8
1, 1
Slot 6
Slot 9
Slot 10
Slot 11
4.4.10 Powerdown Control/Status Register (Index 26h)
This read/write register is used to program powerdown states and monitor subsystem readiness. The
lower half of this register is read only status, a “1” indicating that the subsection is “ready”.
Ready
is
defined as the subsection’s ability to perform in its nominal state. When this register is written, the bit
values that come in on AC-Link will have no effect on read only bits 0-7. Bit 15,
When the AC-Link “Codec Ready” indicator bit (SDATA_IN slot 0, bit 15) is a 1, it indicates that the
AC-Link and AC'97 control and status registers are in a fully operational state. The AC'97 controller
must further probe this Powerdown Control/Status Register to determine exactly which subsections, if
any are ready.
Table 19
. Powerdown Status Registers
BIT
FUNCTION
EAPD
External Amplifier Power Down
REF
VREF’s up to nominal level
ANL
Analog mixers, etc. ready
DAC
DAC section ready to playback data
ADC
ADC section ready to playback data
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