NH82801GHM S L8YR Intel, NH82801GHM S L8YR Datasheet - Page 661
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NH82801GHM S L8YR
Manufacturer Part Number
NH82801GHM S L8YR
Description
Manufacturer
Intel
Datasheet
1.NH82801GHM_S_L8YR.pdf
(848 pages)
Specifications of NH82801GHM S L8YR
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AC ’97 Modem Controller Registers (D30:F3) (Desktop and Mobile Only)
17.2.8
Note:
Intel
®
ICH7 Family Datasheet
GLOB_CNT—Global Control Register (Modem—D30:F3)
I/O Address:
Default Value:
Lockable:
Reads across DWord boundaries are not supported.
31:5
Bit
6
5
4
3
2
1
0
Reserved.
ACZ_SDIN2 Interrupt Enable (S2RE) — R/W.
0 = Disable.
1 = Enable an interrupt to occur when the codec on the ACZ_SDIN2 causes a resume
ACZ_SDIN1 Resume Interrupt Enable (S1RE) — R/W.
0 = Disable.
1 = Enable an interrupt to occur when the codec on the ACZ_SDIN1 causes a resume
ACZ_SDIN0 Resume Interrupt Enable (S0RE) — R/W.
0 = Disable.
1 = Enable an interrupt to occur when the codec on ACZ_SDIN0 causes a resume
AC-LINK Shut Off (LSO) — R/W.
0 = Normal operation.
1 = Controller disables all outputs which will be pulled low by internal pull down
AC ’97 Warm Reset — R/W (special).
0 = Normal operation.
1 = Writing a 1 to this bit causes a warm reset to occur on the AC-link. The warm reset
AC ’97 Cold Reset# — R/W.
0 = Writing a 0 to this bit causes a cold reset to occur throughout the AC ‘97 circuitry.
1 = This bit defaults to 0 and hence after reset, the driver needs to set this bit to a 1.
NOTE: This bit is in the Core well.
GPI Interrupt Enable (GIE) — R/W. This bit controls whether the change in status of
any GPI causes an interrupt.
0 = Bit 0 of the Global Status Register is set, but no interrupt is generated.
1 = The change on value of a GPI causes an interrupt and sets bit 0 of the Global
NOTE: This bit is cleared by the AC ‘97 Modem function D3
event on the AC-link.
event on the AC-link.
event on the AC-link.
resistors.
will awaken a suspended codec without clearing its internal registers. If software
attempts to perform a warm reset while bit_clk is running, the write will be
ignored and the bit will not change. This bit is self-clearing (it remains set until the
reset completes and bit_clk is seen on the AC-link, after which it clears itself).
All data in the controller and the codec will be lost. Software needs to clear this bit
no sooner than the minimum number of ms have elapsed.
The value of this bit is retained after suspends; hence, if this bit is set to a 1 prior
to suspending, a cold reset is not generated automatically upon resuming.
Status Register.
MBAR + 3Ch
00000000h
No
Description
Attribute:
Size:
Power Well:
HOT
R/W, R/W (special)
32 bits
Core
to D0 reset.
661
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