NH82801HBM S LB9A Intel, NH82801HBM S LB9A Datasheet - Page 250

• 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

5.26
5.26.1
5.26.2
5.26.3
250
Intel
Only)
ICH8DH implements the following Intel Quick Resume Technology features:
5.26.1 Visual Off
Intel Quick Resume Technology provides a new functional state called Visual Off. In
Visual Off the PC appears to be Off but is actually active and able to run program tasks.
The Visual Off state is transparent to the user. It is entered by simply pressing the
power button when the system is On. This turns off the display, sound, front panel
lights and HID devices (e.g. keyboard and mouse) but the PC stays active. Perceptually
to the user, the system appears Off in this state. Pressing the power button again will
turn back On the perceptual components that were “muted” in Visual Off.
From the Visual Off state, the system's power management can place the PC in a low
power suspend state (S3) using existing mechanisms. Again, this is transparent to the
end user.
5.26.2 CE-like On/Off
Intel Quick Resume Technology redefines the PC's power button behavior to switch
between user perceived On and Off states like a consumer electronics (CE) device. For
example when a television is turned off there is no shutdown procedure. The viewer
simply turns it Off. Likewise when a modern television is turned On it returns to the
same channel, volume level, color balance, etc. as when it was turned Off. Intel Quick
Resume Technology gives the PC this similar functionality. A simple press of the power
button turns it On or Off. There is no user visible lengthy boot up or shutdown process
as the Visual Off state is used. Therefore, there is no need to exit running applications.
Just as televisions may have multiple power buttons (e.g. on the TV and on a remote
control) so may the PC (e.g. a power button on the system unit and another on the
keyboard). However all power buttons behave the same - On/Off. The PC will not turn
On (wake up) when any key is pressed or the mouse moved just as pressing the
volume button or TV channel button does not cause the TV to turn On. Only a power
button press turns it On and Off.
Intel
To provide the end user notification of the system power state, it is recommended that
the front panel LED be used to indicate Visual Off in the same way that the front panel
LED is used to indicate the S3 system state. For example, if in the S3 state the front
panel LED is solid amber, also set the front panel LED to be solid amber upon entrance
into Visual Off.
To provide for platform implementation flexibility, the ICH8 implements two Intel Quick
Resume Technology signals which are multiplexed with GPIOs: QRT_STATE0/GPIO27
and QRT_STATE1/GPIO28. The QRT_STATE[1:0] pins may be used to control LED(s) to
provide end-user notification of the current system state or may be used as GPIO pins
(independently or combined). See section 14 for further details on controlling these
signals.
• Visual Off
• Consumer Electronics (CE) like On/Off
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Quick Resume Technology Signals
Quick Resume Technology (Intel
Intel
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Functional Description
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ICH8 Family Datasheet
ICH8DH