11. AMI BIOS Configuration
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PCI-960 – User’s Manual (V1.02)
11.3.12.
USB Configuration
This field allows you to select options for USB configuration.
11.3.12.1.
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 is searching for USB devices. Whether no device is detected, the BIOS disable this option in
background.
11.3.12.2.
Port 64/60 Emulation
The
[
Port 64/60 Emulation
]
option is available only if the option [
Legacy USB Support
] is set to
Enabled
or
Auto
.
Possible settings are:
Enabled
and Disabled.
11.3.12.3.
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.
11.3.12.4.
BIOS EHCI Hand-Off
The
[BIOS EHCI Hand-Off] option
is available only if the [
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.