NHE6300ESB S L7XJ Intel, NHE6300ESB S L7XJ Datasheet - Page 159

• Manufacturer Part Number: NHE6300ESB S L7XJ
• Manufacturer: Intel

Specifications of NHE6300ESB S L7XJ

• Lead Free Status / RoHS Status: Compliant

5—Intel
5.11.8.3 THRM# Override Software Bit
5.11.8.4 Processor Initiated Passive Cooling (Via Programmed
5.11.8.5 Active Cooling
5.11.9
5.11.9.1 PWRBTN# - Power Button
November 2007
Order Number: 300641-004US
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Note: There is a small window where the Intel
Note: Transitions start as soon as the PWRBTN# is pressed (but after the debounce logic) and
6300ESB ICH
more throttling period after THRM# goes inactive. This is due to a sampling delay on
THRM# (the signal is still active internally, but has just gone inactive externally).
In case that the Intel
THTL_EN bit is set, the duty cycle associated with the THRM# signal will have higher
priority.
When the Intel
caused by the THRM# signal being active.
The FORCE_THTL bit allows the BIOS to force passive cooling, just as though the
THRM# signal had been active for two seconds. When this bit is set, the Intel
6300ESB ICH will start throttling using the ratio in the THRM_DTY field.
When this bit is cleared the Intel
signal has been active for two seconds or when the THTL_EN bit is set (indicating that
ACPI software is attempting throttling).
Duty Cycle on STPCLK#)
Using the THTL_EN and THTL_DTY bits, the Intel
programmed duty cycle on the STPCLK# signal. This will reduce the effective
instruction rate of the processor and cut its power consumption and heat generation.
See
programming of these bits.
Active cooling involves fans. The GPIO signals from the Intel
used to turn on/off a fan.
Event Input Signal Usage
The Intel
section describes those signals and how they should be used.
The Intel
described in the ACPI specification. PWRBTN# signal has a 16 ms debounce on the
input. The state transition descriptions are included in the following table.
do not depend on when the Power Button is released.
Section 8.8.3.5, “PROC_CNT—Processor Control Register”
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6300ESB ICH has various input signals that trigger specific events. This
6300ESB ICH PWRBTN# signal operates as a “Fixed Power Button” as
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6300ESB ICH is in the C2, or S1–S5 states, then no throttling will be
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6300ESB ICH is already attempting throttling because the
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6300ESB ICH will stop throttling, unless the THRM#
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6300ESB ICH may assert STPCLK# for one
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6300ESB ICH may force a
Intel
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for more details on the
6300ESB ICH may be
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6300ESB I/O Controller Hub
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