Intel cpb4612 User Manual

 

 54

USB Control Descriptions 

 

USB Function: 

Enables USB host controllers.  May be enabled for all ports, specific 
ports, or no ports. 

USB 2.0 Controller: 

Controls the USB 2.0 Controller.  When enabled, the system will support 
high-speed (480 Mbps) USB devices, provided the OS loads a driver for 
the 2.0 Controller. 

USB 2.0 Controller Mode: 

Toggles the USB 2.0 Controller between HiSpeed (480Mbps) and 
FullSpeed (12Mpbs). 

Legacy USB Support: 

Controls whether USB devices are available after POST.  When set to 
Disabled, the USB keyboard may be used only during POST.  Storage 
devices are not applicable in POST Only mode since they do not need to 
be accessed.  When set to Enabled, USB devices including drives, CD-
ROMs, keyboards, and mice can be accessed after POST has 
completed. 

USB Keyboard Legacy Support: When enabled, this option allows any USB keyboard to be recognized as 

a standard input device by an Operating System without native USB 
support (such as DOS). 

USB Mouse Legacy Support: 

When enabled, this option allows any USB mouse to be recognized as a 
standard input device by an Operating System without native USB 
support (such as DOS). 

USB Storage Device Support:  When enabled, this option allows any USB storage device to be 

recognized as a standard input device by an Operating System without 
native USB support (such as DOS). 

 

USB Mass Storage Config Descriptions 

 

USB Mass Storage Reset Delay:  Number of seconds to wait for a USB mass storage device after 

sending the start unit command. 

Emulation Type: 

Specifies the method used to determine the type of USB mass storage 
devices connected.