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USB Configuration
Feature
Legacy USB Support
Port 64/60 Emulation
USB 2.0 Controller Mode
BIOS EHCI Hand-Off
USB reset delay
74
Option
Auto
Disabled
Enabled
Disabled
Enabled
FullSpeed
HiSpeed
Disabled
Enabled
Disabled
Enabled
COMe-cDC2 / BIOS Operation
Description
Enables support for legacy USB. Auto option disables
legacy support if no USB devices are connected.
Enables IO port 60h/64h emuluation support.
Configures the USB 2.0 controller in HiSpeed
(480Mbps) or FullSpeed (12Mbps)
This is a workaround for an OS without EHCI hand-off
support. The EHCI ownership change should claim by
the EHCI driver
Enables extra delay after reset during USB
initialization.
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