4-14
X10SLE-DF User’s Manual
PCH-IO Configuration
This item displays the information for the PCH-IO Chip.
•
Intel PCH Rev ID
•
USB Configuration
•
USB Devices
EHCI1
Select Enabled to enable EHCI (Enhanced Host Controller Interface) Controller 1
for USB 2.0 support. One EHCI controller must always be enabled. The settings
are
Enabled
and Disabled.
EHCI2
Select Enabled to enable EHCI (Enhanced Host Controller Interface) Controller 2
for USB 2.0 support. One EHCI controller must always be enabled. The settings
are
Enabled
and Disabled.
Legacy USB Support
Select Enabled to support legacy USB devices. Select Auto to disable legacy sup-
port if legacy USB devices are not present. Select Disable to have USB devices
available only for EFI applications. The options are
Enabled,
Disabled, and Auto.
Port 60/64 Emulation
Select Enabled to support I/O Port 60h/64h Emulation, which will allow a legacy
USB keyboard to be fully supported by an operating system that does not
recognize a USB device. The options are Disabled and
Enabled
.
XHCI Hand-Off
This item is a work-around solution for operating systems that do not support
XHCI (Extensible Host Controller Interface) hand-off. The XHCI ownership
change should be claimed by the XHCI driver. The settings are
Enabled
and
Disabled.
EHCI Hand-Off
This item is for Operating Systems that do not support Enhanced Host Controller
Interface (EHCI) hand-off. When this item is enabled, EHCI ownership change
will be claimed by the EHCI driver. The settings are Enabled and
Disabled
.
