NH82801HBM S LB9A Intel, NH82801HBM S LB9A Datasheet - Page 121

• Manufacturer Part Number: NH82801HBM S LB9A
• Description: CONTROLLER HUB, ICH8M, I/O, 82801HBM
• Manufacturer: Intel

Specifications of NH82801HBM S LB9A

• Power Dissipation Pd: 2.4W
• Digital Ic Case Style: BGA
• No. Of Pins: 676
• Pci Bus Type: I/O Controller Hub
• Pci Express Base Spec: PCIe 1.1
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Functional Description
5.3.4.1.2
Intel
®
ICH8 Family Datasheet
Once the LAN Controller receives a matching magic packet, it will:
"APM Wakeup" is supported in all power states and only disabled if a subsequent NVM
read results in the APM Wake Up bit being cleared or the software explicitly writes a 0
to the APM Wake Up (APM) bit of the WUC register.
ACPI Power Management Wakeup
The LAN Controller supports ACPI Power Management based Wakeups. It can generate
system wake-up events from three sources:
Activating ACPI Power Management Wakeup requires the following steps:
Normally, after enabling wakeup, the OS will write 11b to the lower two bits of the
PMCSR to put the LAN Controller into low-power mode.
Once Wakeup is enabled, the LAN Controller monitors incoming packets, first filtering
them according to its standard address filtering method, then filtering them with all of
the enabled wakeup filters. If a packet passes both the standard address filtering and
at least one of the enabled wakeup filters, the LAN Controller will:
If enabled, a link state change wakeup will cause similar results, setting PME_Status,
asserting the internal WAKE# signal and setting the Link Status Changed (LNKC) bit in
the Wake Up Status Register (WUS) when the link goes up or down.
The internal WAKE# signal will remain asserted until the OS either writes a 1 to the
PME_Status bit of the PMCSR register or writes a 0 to the PME_En bit.
After receiving a wakeup packet, the LAN Controller will ignore any subsequent wakeup
packets until the driver clears all of the "Received" bits in the Wake Up Status Register
(WUS). It will also ignore link change events until the driver clears the Link Status
Changed (LNKC) bit in the Wake Up Status Register (WUS).
• Set the Magic Packet Received bit in the Wake Up Status Register (WUS).
• Set the PME_Status bit in the Power Management Control / Status Register
• Reception of a "Magic Packet".
• Reception of a Network Wakeup Packet.
• Detection of a link change of state.
• The driver programs the Wake Up Filter Control Register (WUFC) to indicate the
• The OS (at configuration time) writes a 1 to the PME_En bit of the Power
• Set the PME_Status bit in the Power Management Control / Status Register
• If the PME_En bit in the Power Management Control / Status Register (PMCSR) is
• Set one or more of the "Received" bits in the Wake Up Status Register (WUS).
(PMCSR) and assert the internal WAKE# signal.
packets it wishes to wake up and supplies the necessary data to the Ipv4 Address
Table (IP4AT) and the Flexible Filter Mask Table (FFMT), Flexible Filter Length Table
(FFLT), and the Flexible Filter Value Table (FFVT). It can also set the Link Status
Change Wake Up Enable (LNKC) bit in the Wake Up Filter Control Register (WUFC)
to cause wakeup when the link changes state.
Management Control / Status Register (PMCSR.8).
(PMCSR)
set, assert the internal WAKE# signal.
(More than one bit will be set if a packet matches more than one filter.)
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