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Chapter 4
BIOS Setup Description
70
Reference Manual
COM 830
USB Configuration Submenu
Feature
Options
Description
USB Functions
Disabled
2 USB Ports
4 USB Ports
6 USB Ports
8 USB Ports
Disable ICH7M-DH USB host controllers.
Enable UHCI host controller 0.
Enable UHCI host controller 0 + 1.
Enable UHCI host controller 0 + 1 + 2.
Enable UHCI host controller 0 + 1 + 2 + 3.
USB 2.0 Controller
Enabled
Disabled
Enable the ICH7M-DH USB 2.0 (EHCI) host controller.
Legacy USB Support
Disabled
Enabled
Auto
Legacy USB Support refers to the USB keyboard, USB
mouse and USB mass storage device support.
If this option is
Disabled
, any attached USB device will not
become available until a USB compatible operating system
is booted. However, legacy support for USB keyboard will
be present during POST.
When this option is
Enabled
, those USB devices can
control the system even when there is no USB driver
loaded.
AUTO
disables legacy support if no USB devices are
connected.
USB Keyboard Legacy
Support
Disabled
Enabled
Enable/Disable USB keyboard legacy support.
NOTE: This option has to be used with caution. If the
system is equipped with USB keyboard only, the user
cannot enter setup to enable the option back.
USB Mouse Legacy
Support
Disabled
Enabled
Enable/Disable USB mouse legacy support.
USB Storage Device
Support
Disabled
Enabled
Enable/Disable USB mass storage device support.
Port 64/60 Emulation
Disabled
Enabled
Enable/Disable the “Port 6h/64h” trapping option. Port
60h/64h trapping allows the BIOS to provide full PS/2
based legacy support for USB keyboard and mouse. It
provides the PS/2 functionalities like keyboard lock,
password setting, scan code selection etc. to USB
keyboards.
USB 2.0 Controller
Mode
FullSpeed
HiSpeed
Configures the USB 2.0 host controller in HiSpeed
(480Mbps) or FullSpeed (12Mbps).
BIOS EHCI Hand-Off
Disabled
Enabled
Enable workaround for OSs without EHCI hand-off
support.
USB Beep Message
Disabled
Enabled
Enable/Disable the beep during USB device enumeration.
USB Stick Default
Emulation
Auto
Hard Disk
Select default USB stick emulation type. Auto selects
floppy or hard disk emulation based on the storage size of
the USB stick, but the emulation type can be manually
reconfigured for each device using the Mass Storage
Device Configuration sub menu.
Summary of Contents for COM 830
Page 1: ...COM 830 Computer On Module Reference Manual P N 5001829A Revision A ...
Page 10: ...Chapter 1 About This Manual 4 Reference Manual COM 830 ...
Page 90: ...Chapter 4 BIOS Setup Description 84 Reference Manual COM 830 ...
Page 92: ...Appendix A Technical Support 86 Reference Manual COM 830 ...