Usb configuration, Come-cdc2 / bios operation – Kontron COMe-cDC2 User Manual

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COMe-cDC2 / BIOS Operation

USB Configuration

Feature

Option

Description

Legacy USB Support

Auto

Disabled
Enabled

Enables support for legacy USB. Auto option disables

legacy support if no USB devices are connected.

Port 64/60 Emulation

Disabled
Enabled

Enables IO port 60h/64h emuluation support.

USB 2.0 Controller Mode

FullSpeed
HiSpeed

Configures the USB 2.0 controller in HiSpeed
(480Mbps) or FullSpeed (12Mbps)

BIOS EHCI Hand-Off

Disabled
Enabled

This is a workaround for an OS without EHCI hand-off

support. The EHCI ownership change should claim by
the EHCI driver

USB reset delay

Disabled

Enabled

Enables extra delay after reset during USB

initialization.

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