IBASE Technology IB811 User Manual page 75

4.5.2.4. USB Configuration
BIOS Setting
XHCI Pre-Boot Driver
XHCI Mode
USB VBUS
USB HSIC1 Support
USB SSIC1 Support
USB Port Disable
Override
XDCI Support
XHCI Disable
Compliance Mode
66
Description
Enables / Disables the support for XHCI Pre-Boot
Driver.
Enables / Disables XHCI mode.
If disabled, XHCI controller would be disabled,
and none of the USB devices are detectable or
usable when systen is booted up in OS.
Do NOT disable it unless for debug purpose.
VBUS should be ON in HOST mode. It should be
OFF in OTG device mode.
Enables / Disables USB HSIC1.
Enables / Disables USB SSIC1.
Selectively enables / disables the corresponding
USB port from reporting a device connection to
the controller.
Enables / Disables XDCI.
FALSE makes the XHCI Link Compliance Mode
not disabled.
TRUE disables the XHCI Link Compliance Mode.
IB811F Series User's Manual