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Usb configuration – Kontron PCI-760 User Manual

Page 53

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10. AMI BIOS Configuration

PCI-760 – User’s Guide (V1.10)

51

10.3.5.

USB Configuration

This field allows you to select options for USB configuration.

10.3.5.1.

Legacy USB Support

This function enables or disables support for legacy USB. Enabling legacy USB support allows using USB devices under

DOS and other non-Plug & Play operating systems.

Possible settings are:

Enabled

, Disabled

and Auto.

If “Auto” is set, the system searches for USB devices. Whether no device is detected, the BIOS disable this option in

background.

10.3.5.2.

USB 2.0 Controller Mode

The

[USB 2.0 Controller Mode]

option is available only if the option [

Legacy USB Support

] is set to

Enabled

or

Auto.

This option allows you to set the data signaling rate for the USB 2.0 controller.

Possible settings are: FullSpeed and

HiSpeed

.

HiSpeed

This setting allows data signaling rate of 480 Mbps.

FullSpeed

This setting allows data signaling rate of 12 Mbps.

10.3.5.3.

BIOS EHCI Hand-Off

The

[BIOS EHCI Hand-Off)]

option is available only if the option [

Legacy USB Support

] is set to

Enabled

or

Auto.

This option allows you to enable support for operating systems without “EHCI Hand-Off” features.

Possible settings are:

Enabled

and Disabled.

10.3.5.4.

USB Beep Message

This option allows you to enable or disable generating a beep during USB devices enumeration.

Possible settings are:

Enabled

and Disabled.