NH82801GHM S L8YR Intel, NH82801GHM S L8YR Datasheet - Page 447
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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LPC Interface Bridge Registers (D31:F0)
10.8.3.12
Note:
Intel
®
ICH7 Family Datasheet
SMI_EN—SMI Control and Enable Register
I/O Address:
Default Value:
Lockable:
Power Well:
This register is symmetrical to the SMI status register.
31:26
24:19
16:15
10:8
Bit
25
18
17
14
13
12
11
Reserved
Intel
EL_SMI_EN — R/W.
0 = Disable
1 = Software sets this bit to enable Intel Quick Resume Technology logic to cause
SMI#
ICH7 and ICH7R and Mobile/Ultra Mobile Only:
Reserved
Reserved
INTEL_USB2_EN — R/W.
0 = Disable
1 = Enables Intel-Specific USB2 SMI logic to cause SMI#.
LEGACY_USB2_EN — R/W.
0 = Disable
1 = Enables legacy USB2 logic to cause SMI#.
Reserved
PERIODIC_EN — R/W.
0 = Disable.
1 = Enables the Intel
TCO_EN — R/W.
0 = Disables TCO logic generating an SMI#. Note that if the NMI2SMI_EN bit is
1 = Enables the TCO logic to generate SMI#.
NOTE: This bit cannot be written once the TCO_LOCK bit is set.
Reserved
MCSMI_ENMicrocontroller SMI Enable (MCSMI_EN) — R/W.
0 = Disable.
1 = Enables ICH7 to trap accesses to the microcontroller range (62h or 66h) and
Reserved
(PMBASE + 34h, bit 14) is set in the SMI_STS register (PMBASE + 34h).
set, SMIs that are caused by re-routed NMIs will not be gated by the TCO_EN
bit. Even if the TCO_EN bit is 0, NMIs will still be routed to cause SMIs.
generate an SMI#. Note that “trapped’ cycles will be claimed by the ICH7 on
PCI, but not forwarded to LPC.
PMBASE + 30h
00000000h
No
Core
®
ICH7DH Only:
®
ICH7 to generate an SMI# when the PERIODIC_STS bit
Description
Attribute:
Size:
Usage:
R/W, R/W (special), WO
32 bit
ACPI or Legacy
447
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