![background image](http://html1.mh-extra.com/html/ibase-technology/ib818f-series/ib818f-series_user-manual_3232530058.webp)
50
IB818F
User’s Manual
4.4.10 USB Configuration
BIOS Setting
Description
Legacy USB Support
•
Enabled
enables Legacy USB support.
•
Auto
disables legacy support if there is no
USB device connected.
•
Disabled
keeps USB devices available only
for EFI applications.
XHCI Hand-off
This is a workaround for OSes without XHCI
hand-off support. The XHCI ownership change
should be claimed by XHCI driver.
USB Mass Storage
Driver Support
Enables / Disables the support for USB mass
storage driver.
USB Transfer
time-out
The time-out value (1 / 5 10 / 20 secs) for Control,
Bulk, and Interrupt transfers.
Device reset time-out
Gives seconds (10 / 20 / 30 / 40 secs) to delay
execution of Start Unit command to USB mass
storage device.
Device power-up
delay
The maximum time the device will take before it
properly reports itself to the Host Controller.
Auto
uses default value for a Root port it is
100ms. But for a Hub port, the delay is taken from
Hub descriptor.
Summary of Contents for IB818F Series
Page 8: ......
Page 14: ...6 IB818F User s Manual 1 6 Block Diagram...
Page 17: ...General Information IB818F User s Manual 9 1 1 8 Dimensions...
Page 18: ...10 IB818F User s Manual This page is intentionally left blank...
Page 22: ...14 IB818F User s Manual 2 3 Jumper Connector Locations Board diagram of IB818F...
Page 42: ...34 IB818F User s Manual This page is intentionally left blank...