NEXCOM NSA 5130 - Manual (Page 85)

Copyright © 2011 NEXCOM International Co., Ltd. All Rights Reserved. 72 NSA 5130 User Manual
Chapter 4: BIOS Setup
USB Configuration
This section is used to configure USB devices.
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.
BIOS SETUP UTILITY
Version 2.11.1210. Copyright (C) 2011 American Megatrends, Inc.
← → Select Screen
↑↓ Select Item
+- Change Option
F1 General Help
F10 Save and Exit
ESC Exit
USB Configuration
USB Devices:
1 Drive, 1 Keyboard, 2 Hubs
Legacy USB Support [Enabled]
EHCI Hand-Off [Disabled]
Port 60/64 Emulation [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
USBPEN SAC7001-P0909 0.00 [Auto]
Advanced
Legacy USB Support
Due to the limited space of the BIOS ROM, the support for legacy USB
keyboard (in DOS mode) is by default set to Disabled. With more BIOS
ROM space available, it will be able to support more advanced features
as well as provide compatibility to a wide variety of peripheral devices.
If a PS/2 keyboard is not available and you need to use a USB keyboard
to install Windows (installation is performed in DOS mode) or run any
program under DOS, set this field to Enabled.
EHCI Hand-Off
Enable this field when using operating systems without the EHCI hand-off
support.
Port 60/64 Emulation
Enables the I/O port 60h/64h emulation. This should be enabled for com-
plete USB keyboard legacy support for non-USB OSes.
USB Transfer Time-out
Selects the time-out value for Control, Bulk, and Interrupt transfers.
Device Reset Time-out
Selects the time-out value of the USB mass storage device’s start unit
command.
Device Power-Up Delay
Selects the maximum time the device will take before it properly reports
itself to the Host Controller.
USBPEN SAC7001-P0909 0.00
Selects the mass storage device emulation type.