NH82801HBM S LB9A Intel, NH82801HBM S LB9A Datasheet - Page 77

• 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

Signal Description
2.14
Table 18.
2.15
Table 19.
Intel
®
ICH8 Family Datasheet
SMBus Interface
SM Bus Interface Signals
System Management Interface
System Management Interface Signals (Sheet 1 of 2)
LINKALERT# /
SMBALERT# /
SMLINK[1:0]
(Mobile Only)/
(MEM_LED)/
INTRUDER#
SusPwrAck/
SMBDATA
CL_RST1#
CLGPIO0
SMBCLK
ALERT#
GPIO11
GPIO24
GPIO10
Name
Name
Type
I/OD
I/OD
Type
I/OD
I/OD
I/O
I/O
I
I
SMBus Data: External pull-up resistor is required.
SMBus Clock: External pull-up resistor is required.
SMBus Alert: This signal is used to wake the system or generate
SMI#. If not used for SMBALERT#, it can be used as a GPIO.
Intruder Detect: This signal can be set to disable system if box
detected open. This signal’s status is readable, so it can be used like
a GPIO if the Intruder Detection is not needed.
System Management Link: SMBus link to optional external
system management ASIC or LAN controller. External pull-ups are
required. Note that SMLINK0 corresponds to an SMBus Clock signal,
and SMLINK1 corresponds to an SMBus Data signal.
SMLink Alert: Output of the integrated LAN and input to either the
integrated ASF or an external management controller in order for
the LAN’s SMLINK slave to be serviced.
When used as LINKLERT#, an external pull-up resistor is required.
Controller Link General Purpose I/O 0: Provides DRAM-powered
LED control. Allows for the blinking of an LED circuit to indicate
memory activity.
This signal can instead be used as GPIO.
SusPwrAck/ALERT# (Mobile Only) / GPIO10: The primary use
of this pin is for SusPwrAck communication from the Management
Engine (ME) to the platform Embedded Controller (EC). ALERT#
functionality is provided for backup to facilitate SMBus ME-to-EC and
EC-to-ME communication and is not used in the current
implementation.
SusPwrAck signal is an output signal used by the ME in conjunction
with SLP_M# to indicate to the EC that it acknowledges any
Suspend well power down decision by the EC. When the ME asserts
this signal high and SLP_M# is low, this indicates to the EC it is safe
to power off the Suspend well. Likewise, when the ME de-asserts
this signal low and the Suspend well is powered, this indicates to the
EC that the ME requires the Suspend well to remain powered.
(Active High, Level).
This signal can instead be used as a GPIO. This signal is used as
GPIO10 in desktop systems.
Description
Description
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