NH82801GHM S L8YR Intel, NH82801GHM S L8YR Datasheet - Page 157
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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
Lead Free Status / RoHS Status
Compliant
- Current page: 157 of 848
- Download datasheet (7Mb)
Functional Description
Table 5-28. Causes of SMI# and SCI (Sheet 1 of 2)
Intel
®
ICH7 Family Datasheet
In systems using the APIC, the SCI can be routed to interrupts 9, 10, 11, 20, 21, 22, or
23. The interrupt polarity changes depending on whether it is on an interrupt shareable
with a PIRQ or not (see
sources are removed.
Table 5-28
be programmed to cause either an SMI# or SCI. The usage of the event for SCI
(instead of SMI#) is typically associated with an ACPI-based system. Each SMI# or SCI
source has a corresponding enable and status bit.
PME#
PME_B0 (internal EHCI
controller)
PCI Express* PME Messages
(Desktop and Mobile)
PCI Express Hot Plug
Message (Desktop and
Mobile)
Power Button Press
Power Button Override
RTC Alarm
Ring Indicate
AC ’97 wakes (Desktop and
Mobile)
USB#1 wakes
USB#2 wakes
USB#3 wakes
USB#4 wakes
THRM# pin active
ACPI Timer overflow (2.34
sec.)
Any GPI
TCO SCI Logic
TCO SCI message from
(G)MCH
TCO SMI Logic
TCO SMI — Year 2000
Rollover
TCO SMI — TCO TIMEROUT
TCO SMI — OS writes to
TCO_DAT_IN register
TCO SMI — Message from
(G)MCH
7
Cause
shows which events can cause an SMI# and SCI. Note that some events can
1-5
6
)
Section
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
SCI
10.1.14). The interrupt remains asserted until all SCI
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
SMI
PME_EN=1
PME_B0_EN=1
PCI_EXP_EN=1
(Not enabled for SMI)
HOT_PLUG_EN=1
(Not enabled for SMI)
PWRBTN_EN=1
None
RTC_EN=1
RI_EN=1
AC97_EN=1
USB1_EN=1
USB2_EN=1
USB3_EN=1
USB4_EN=1
THRM_EN=1
TMROF_EN=1
GPI[x]_Route=10 (SCI)
GPI[x]_Route=01 (SMI)
GPE0[x]_EN=1
TCOSCI_EN=1
none
TCO_EN=1
none
none
none
none
Additional Enables
PME_STS
PME_B0_STS
PCI_EXP_STS
HOT_PLUG_STS
PWRBTN_STS
PRBTNOR_STS
RTC_STS
RI_STS
AC97_STS
USB1_STS
USB2_STS
USB3_STS
USB4_STS
THRM_STS
TMROF_STS
GPI[x]_STS
GPE0_STS
TCOSCI_STS
MCHSCI_STS
TCO_STS
NEWCENTURY_STS
TIMEOUT
OS_TCO_SMI
MCHSMI_STS
Where Reported
157
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