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Chapter 4: BIOS Setup
USB Configuration
This section is used to configure USB parameters.
Aptio Setup Utility - Copyright (C) 2019 American Megatrends, Inc.
Advanced
USB Configuration
USB Module Version
21
USB Controllers:
2 XHCIs
USB Devices:
1 Keyboard, 1 Mouse, 2 Hubs
Legacy USB Support
[Enabled]
XHCI Hand-off
[Enabled]
USB Mass Storage Driver Support
[Enabled]
[Disabled]
Port 60/64 Emulation
USB hardware delays and time-outs:
USB transfer time-out
[20 sec]
Device reset time-out
[20 sec]
Device power-up delay
[Auto]
Version 2.20.1273. Copyright (C) 2019 American Megatrends, Inc.
Legacy USB Support
Enabled Enables Legacy USB.
Auto
Disables support for Legacy when no USB devices are connected.
Disabled Keeps USB devices available only for EFI applications.
XHCI Hand-off
This is a workaround for OSs that does not support XHCI hand-off. The
XHCI ownership change should be claimed by the XHCI driver.
USB Mass Storage Driver Support
Enables or disables USB mass storage device driver support.
Copyright © 2020 NEXCOM International Co., Ltd. All Rights Reserved.
Port 60/64 Emulation
Enables I/O port 60h/64h emulation support. This should be enabled for
complete USB keyboard legacy support for non-USB aware OS.
USB transfer time-out
The time-out value for control, bulk, and Interrupt transfers.
Enables Legacy USB support.
AUTO option disables legacy
support if no USB devices are
Device reset time-out
connected. DISABLE option will
keep USB devices available
Selects the USB mass storage device's start unit command timeout.
only for EFI applications.
Device power-up delay
Maximum time the value 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.
→←: Select Screen
↑↓: Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
F3: Optimized Defaults
F4: Save & Exit
ESC: Exit
39
NDiS V1000 User Manual
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