NH82801HEM S LB9B Intel, NH82801HEM S LB9B Datasheet - Page 117
NH82801HEM S LB9B
Manufacturer Part Number
NH82801HEM S LB9B
Description
Manufacturer
Intel
Datasheet
1.NH82801HEM_S_LB9B.pdf
(890 pages)
Specifications of NH82801HEM S LB9B
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Functional Description
5.2.4.4
Intel
®
ICH8 Family Datasheet
SMI/SCI Generation
Interrupts for Hot-Plug events are not supported on legacy operating systems. To
support Hot-Plug on non-PCI Express aware operating systems, Hot-Plug events can be
routed to generate SCI. To generate SCI, MPC.HPCE (D28:F0/F1/F2/F3F4/F5:Offset
D8h:bit 30) must be set. When set, enabled Hot-Plug events will cause SMSCS.HPCS
(D28:F0/F1/F2/F3F4/F5:Offset DCh:bit 30) to be set.
Additionally, BIOS workarounds for Hot-Plug can be supported by setting MPC.HPME
(D28:F0/F1/F2/F3F4/F5:Offset D8h:bit 1). When this bit is set, Hot-Plug events can
cause SMI status bits in SMSCS to be set. Supported Hot-Plug events and their
corresponding SMSCS bit are:
When any of these bits are set, SMI # will be generated. These bits are set regardless
of whether interrupts or SCI is enabled for Hot-Plug events. The SMI# may occur
concurrently with an interrupt or SCI.
• Command Completed - SCSCS.HPCCM (D28:F0/F1/F2/F3/F4/F5:Offset DCh:bit 3)
• Presence Detect Changed - SMSCS.HPPDM (D28:F0/F1/F2/F3/F4/F5:Offset DCh:bit
• Attention Button Pressed - SMSCS.HPABM (D28:F0/F1/F2/F3/F4/F5:Offset DCh:bit
• Link Active State Changed - SMSCS.HPLAS (D28:F0/F1/F2/F3/F4/F5:Offset DCh:bit
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