Bios - advanced – Kontron KTHM76-mITX User Manual
Page 85
KTQM77 – KTHM76 Users Guide
KTD-N0850-F Page 85
Function
Selection
Description
Legacy USB Support
Enabled
Disabled
Auto
Enables Legacy USB support.
AUTO option disables legacy support if no USB
devices are connected. DISABLE option will
keep USB devices available only for EFI
applications.
USB3.0 Support
Enabled
Disabled
Enable/Disable USB3.0 (XHCI) Controller
support.
XHCI Hand-off
Enabled
Disabled
This is a workaround for OSes without XHCI
hand-off support.
The XHCI ownership change should be claimed
by XHCI driver.
EHCI Hand-off
Enabled
Disabled
This is a workaround for OSes without EHCI
hand-off support.
The EHCI ownership change should be claimed
by EHCI driver.
USB Mass Storage Driver
Support
Enabled
Disabled
Enable/disable USB Mass Storage Driver
Support.
USB transfer time-out
1 sec
5 sec
10 sec
20 sec
The time-out value for Control, Bulk, and
Interrupt transfers.
Device reset time-out
10 sec
20 sec
30 sec
40 sec
USB mass storage device Start Unit command
time-out.
Device power-up delay
Auto
Normal
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
100 ms, for a Hub port the delay is taken from
Hub descriptor.
BIOS - Advanced