USB EHCI Controller

4/5 - (18 votes)
4/5 - (18 votes)

USB EHCI Controller

Option name:

USB EHCI Controller

Possible values of an option:

[Enabled], [Disabled]

The option description:

The option allows to specify the version of the specification which will use the chipset USB-controller. At a choice [Disabled] the controller will work in mode USB 1.1, value [Enabled] allows to involve and modern mode USB 2.0. Naturally, for this option the second value should be established.

The basic distinction in specifications USB 1.1 and USB 2.0 consists in the maximum speed of data transmission: for USB 1.1 it is limited by value in 12 Mbit/with, and at use USB 2.0 can reach 480 Mbit/with. Thus specification USB 2.0 does not impose any restrictions on the used equipment, perfectly supporting and низкоскоростные devices of standard USB 1.1.

Interfaces OHCI (Open Host Controller Interface) and EHCI (Enhanced Host Controller Interface) describe, as a matter of fact, hardware realisation of controller USB. To the specification 1.1 USB-controllers there corresponds interface OHCI, controllers of the specification 2.0 are under construction on the basis of EHCI. Thus, the choice of this or that interface unequivocally sets version USB.

Other options identical to destination:

High Speed USB

OnBoard SiS USB 2.0 Device

OnChip EHCI Controller

USB 2.0 Controller

USB 2.0 Supports

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