Contec DS-380D Series, User Manual

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5. BIOS Setup
USB Configuration
Aptio Setup Utility - Copyright (C) 20xx American Megatrends, Inc.
Main Advanced Chipset Boot Security Save & Exit
USB Configuration
USB Devices:
X Drive, X Keyboard, X Mouse
Legacy USB Support
[Enabled]
XHCI Hand-off [Enabled]
EHCI Hand-off [Enabled]
USB hardware delays and time-outs:
USB transfer time-out
[20 sec]
Device reset time-out [20 sec]
Device power-up delay [Auto]
Mass Storage Devices:
“Storage Name”
[Auto]
→←:Select Screen
↑↓:Select Item
Enter:Select
+/-:Change Opt.
F1:General Help
F2:Previous Values
F3:Optimized Defaults
F4:Save & Exit
ESC:Exit
Version x.xx.xxxx. Copyright (C) 20xx American Megatrends, Inc.
Figure 5.13. USB Configuration
Settings that can be configured in the USB Configuration are described in the table below.
Table 5.11. USB Configuraiton
Item Options Description
Legacy USB Support
Enabled
Disabled
Auto
Enables Legacy USB support.
AUTO option disables legacy support if no USB
devices are connected.
DISABLE option keeps USB devices available only
for EFI applications.
XHCI Hand off
Enabled
Disabled
Enable/Disable USB3.0 (XHCI) Controller support.
EHCI 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.
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
Manual
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, for a Hub
port the delay is taken from Hub descriptor.
DS-380D Series User’s manual
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