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Technical Manual
ePanel-C3
Version 1.04
USB CONFIGURATION
Legacy USB Support
Legacy USB Support refers to the USB mouse and USB keyboard support. Normally if this option is not
enabled, any attached USB mouse or USB keyboard will not become 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 drivers loaded on the system.
USB Keyboard Legacy Support
Enable or disable support for legacy keyboard devices.
USB Mouse Legacy Support
Enable or disable support for legacy mouse devices.
USB Storage Device Support
Enable or disable support for USB bootable media (e.g. Floppy, Harddisk, CDROM, USB-Stick).
Port 64/60 Emulation
If an operating system doesn't support USB function and you want to use a USB keyboard, this function will
allow the use of a USB keyboard. This option should not be enabled if the matrix keyboard is also used.
USB 2.0 Controller Mode (canceled from BIOS version 2.02)
Set the USB 2.0 host controller either to Full Speed Mode (12 MBit) or to High Speed Mode (480 MBit) for le-
gacy mode (unpersuasively WINDOWS or LINUX functionality).
BIOS EHCI Hand-Off (canceled from BIOS version 2.02)
If enabled this provides a simple semaphore-based mechanism for exchanging EHCI ownership. The BIOS and
operating system can exchange information via two 32 bit registers. Please see the Intel Enhanced Host
Controller Interface Specification for the Universal Serial Bus.
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