© National Instruments
|
2-9
NI PXIe-8880 User Manual
•
Overcurrent Reporting
—This setting allows the BIOS to notify the operating system of
any USB ports which sources too much current. The default value for this setting is
Disabled
.
•
Transfer Timeout
—This setting specifies the timeout value for Control, Bulk, and
Interrupt USB transfers. The default value for this setting is
20
seconds.
•
Device Reset Timeout
—This setting specifies the number of seconds the Power-On Self
Test will wait for a USB mass storage device to start. The default is
20
seconds.
•
Device Power-Up Delay
—This setting specifies the maximum time a device will take
before it properly reports itself to the host controller. When set to
Auto
, a root port is
granted 100 ms, and for a hub port, the delay value is taken from the hub descriptor. The
default value for this setting is
Auto
.
•
Device Power-Up Delay in Seconds
—This setting specifies the number of seconds the
Power-On Self Test will wait for a USB device or hub to power on. This setting is only
visible if
Device Power-Up Delay
is set to
Manual
. The default is
5
seconds.
In addition, the following option is available for each detected device if a USB mass storage
device is present:
•
Emulation Type
—This setting specifies how the BIOS will present the USB mass storage
device to the system. This option can be used to present a USB mass storage device as a
floppy, hard disk, or CD-ROM drive. The default is
Auto
, which allows the BIOS to treat
small USB flash disk drives as floppy drives and larger USB flash disk drives as hard disk
drives.
TPM Configuration Submenu (TPM Variant)
Use this submenu to enable Trusted Platform Module (TPM) device support and execute
selected TPM commands.
•
TPM Device Support
—This option enables or disables TPM device support. If disabled,
the TPM device will be hidden from operating systems.
•
TPM Device State
—This option shows the current TPM device state, and can also be used
to change the TPM device state.
•
TPM Device Operation
—This option can be used to clear the TPM.
Caution
Clearing the TPM is a destructive operation that may result in the loss of
all data protected by the TPM device.
TPM Physical Presence Confirmation Screen
Some TPM commands may require confirmation of physical presence before they can be
executed. In this case, the system will reboot and the BIOS will present a screen asking for
confirmation to execute the TPM command. You can confirm or reject the execution of the TPM
command.
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