Avalue ECM-VX900 - Manual (Page 55)

ECM-VX900
ECM-VX900 User ’s Manual 55
3.6.2.8 USB Configuration
Item Options Description
OnChip UHCI Device
Enabled
Disabled
Enable or disable USB1.1 Function 0 port 0-1
OnChip UHCI2 Device
Enabled
Disabled
Enable or disable USB1.1 Function 1 port 2-3
OnChip UHCI3 Device
Enabled
Disabled
Enable or disable USB1.1 Function 2 port 4-5
OnChip UHCI4 Device
Enabled
Disabled
Enable or disable USB1.1 Function 3 port 6-7
OnChip EHCI Device
Enabled
Disabled
Enable or disable USB2.0 EHCI
USB Device Mode Enable
Enabled
Disabled
Enable or disable USB device
Legacy USB Support
Enabled (D EFAULT )
Disabled,
Auto
Use this option to enable USB mouse and
USB keyboard support. Normally if this option
is not enabled, attached USB mouse or USB
keyboard is not available until a USB
compatible operating system is fully booted
with all USB drivers loaded. When this option
is enabled, any attached USB mouse or USB
keyboard can control the system even when
there is no USB driver loaded onto the system.
USB 2.0 Controller Mode
HiSpeed (480Mbps)
(D EFAULT )
FullSpeed (12Mpbs)
This item allows you to select HiSpeed
(480Mbps) or FullSpeed (12Mpbs).
BIOS EHCI Hand-off
Enabled (D EFAULT )
Disabled
This is a workaround for OSs without EHCI
hand-off support. The EHCI ownership change
should be claimed by EHCI driver.
Legacy USB1.1 HC Support
Disabled
Enabled
Enable or Disable Legacy USB1.1 HC Support