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Function
FACP – KTC S4 Flag Value
APIC – IO APIC Mode
ALS Support
EMA Support
MEF Support
Enabled PTID
FACP – PM Timer Flag Value
FACP – Low Power S0 Idle
Capable Flag Value
CPPC
CPPC Platform Sci enable
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Selection
Description
Disabled
Valid Only for ACPI. Controls the value for the RTC S4 flag in the
Enabled
FACP table.
Disabled
This is valid only for WIN2000, Windows XP. A fresh install of OS
Enabled
must occur when APIC mode is enabled. The APIC table will be
pointed to by the RSDT, the Local APIC will be initialized, and the
proper enable bits are set in the PCH.
Legacy
Valid only for ACPI. Legacy = ALS support through the IGD INT10
ACPI
function. ACPI = ALS support through an ACPI ALS driver.
Disabled
Valid only for ACPI. Controls the EMA device in an ACPI
Enabled
environment.
Disabled
Valid only for ACPI. Controls the Mobile East Fork feature support
Enabled
in an ACPI environment.
Disabled
Enable/Disable Power and Temperature Instrumentation Details.
Enabled
Disabled
Valid only for ACPI. Controls the PM Timer Flag Value in the FACP
Enabled
table.
Disabled
Valid only for ACPI. Controls the Low Power S0 Idle Capable Flag
Enabled
(Bit 21) in the FACP table.
Disabled
ACPI 5.0 Collaborative Processor Performance Control. When CPPC
Enabled
is enabled, the newer ACPI 5.0 method for processor performance
control will be used. When disabled, the older methods (P-State
and T-State) will be used.
Disabled
When enabled, the platform will generate a GPE/SCI upon CPPC
Enabled
command completion. If disabled, the OS must poll for command
mITX-BDW-U – User Guide, Rev. 1.6
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