FW82801EB Intel, FW82801EB Datasheet - Page 546
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FW82801EB
Manufacturer Part Number
FW82801EB
Description
Manufacturer
Intel
Datasheet
1.FW82801EB.pdf
(671 pages)
Specifications of FW82801EB
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AC ’97 Audio Controller Registers (D31:F5)
15.2
546
Table 169. Intel
AC ’97 Audio I/O Space (D31:F5)
The AC ’97 I/O space includes Native Audio Bus Master Registers and Native Mixer Registers.
For the ICH5, the offsets are important as they will determine bits 1:0 of the TAG field (codec ID).
Audio Mixer I/O space can be accessed as a 16-bit field only since the data packet length on
AC-link is a word. Any S/W access to the codec will be done as a 16-bit access starting from the
first active byte. In case no byte enables are active, the access will be done at the first word of the
qWord that contains the address of this request.
Primary Offset
(Codec ID =00)
3C–56h
®
0Ah
0Ch
0Eh
1Ah
1Ch
1Eh
2Ah
2Ch
2Eh
3Ah
00h
02h
04h
06h
08h
10h
12h
14h
16h
18h
20h
22h
24h
26h
28h
30h
32h
34h
36h
38h
58h
ICH5 Audio Mixer Register Configuration (Sheet 1 of 2)
Secondary Offset
(Codec ID =01)
BC–D6h
ACh
8Ah
8Ch
8Eh
9Ah
9Ch
9Eh
A0h
A2h
A4h
A6h
A8h
AAh
AEh
B0h
B2h
B4h
B6h
B8h
BAh
D8h
80h
82h
84h
86h
88h
90h
92h
94h
96h
98h
Tertiary Offset
(Codec ID =10
13C–156h
Intel
10Ch
12Ch
100h
102h
104h
106h
108h
10Ah
10Eh
11Ah
11Ch
11Eh
120h
122h
124h
126h
128h
12Ah
12Eh
130h
132h
134h
136h
138h
13Ah
158h
110h
112h
114h
116h
118h
®
82801EB ICH5 / 82801ER ICH5R Datasheet
Reset
Master Volume
Aux Out Volume
Mono Volume
Master Tone (R & L)
PC_BEEP Volume
Phone Volume
Mic Volume
Line In Volume
CD Volume
Video Volume
Aux In Volume
PCM Out Volume
Record Select
Record Gain
Record Gain Mic
General Purpose
3D Control
AC’97 RESERVED
Powerdown Ctrl/Stat
Extended Audio
Extended Audio Ctrl/Stat
PCM Front DAC Rate
PCM Surround DAC Rate
PCM LFE DAC Rate
PCM LR ADC Rate
MIC ADC Rate
6Ch Vol: C, LFE
6Ch Vol: L, R Surround
S/PDIF Control
Intel RESERVED
AC’97 Reserved
NAMBAR Exposed Registers
(D31:F5)
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