EKF SC3-LARGO - Universal Serial Bus (USB)

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User Guide • SC3-LARGO • CompactPCI

Serial CPU Board • Intel

Core

5xxx Processor

Universal Serial Bus (USB)

The SC3-LARGO is provided with fourteen USB ports. All of them are USB 2.0 capable, but four ports

are also supporting the USB 3.0 SuperSpeed standard. Two USB 3.0 interfaces are routed to front

panel connectors, the other two SuperSpeed ports are feed to the CompactPCI

Serial connectors P1

and P3.

The USB 2.0 interfaces are distributed to the front panel (two ports), two to the expansion board

interface connectors P-EXP, four to the high speed expansion connector P-HSE, and six ports are

available across the backplane connectors for CompactPCI

Serial.

The front panel USB connectors can source a minimum of 1.5A/5V each, over-current protected by

two electronic switches. Protection for the USB ports on the expansion interfaces and on the

CompactPCI

Serial connectors is located on expansion boards and the boards on the CompactPCI

Serial backplane respective. The USB xHCI and two EHCI controllers handling the USB port operation

at SuperSpeed, high-speed, full-speed and low-speed are integrated into the QM87 PCH.

An xHCI driver (USB 3.0) for Windows

7 is provided by Intel and can be downloaded from EKF’s

website.