EKF SC1-ALLEGRO, Руководство пользователя

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User Guide • SC1-ALLEGRO •
CompactPCI ® Serial
CPU Board • Intel® i7-3xxx Processor
Universal Serial Bus (USB)
The SC1-ALLEGRO 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 J-EXP, four to the high speed expansion connector J-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 QM77 PCH.
Utility Interfaces
Besides the high speed mezzanine interface connectors J-HSE and J-PCIE, the SC1-ALLEGRO is
provided with the utility interface expansion connector socket J-EXP. This connector comprises several
interfaces, which may be useful for system expansion on mezzanine cards, as an option:
<
HD Audio
<
LPC (Low Pin Count)
<
SMBus
<
2 x USB
The SMBus is controlled by the QM77 platform controller hub. The SMBus signal lines on the J-EXP
utility expansion connector can be switched on/off under software control (PCH GPIO) in order to
isolate external components in case of an I
2
C address conflict.
The HD Audio port requires an additional audio codec, as provided e.g. on the CCO-CONCERT side
card.
The LPC bus presents an easy way to add legacy interfaces to the system. EKF offers a variety of
mezzanine expansion boards (side cards), to be attached on top of the SC1-ALLEGRO, featuring all
classic Super-I/O functionality, for example the CCO-CONCERT. Access to the connectors PS/2 (mouse,
keyboard), COM, USB and audio in/out is given directly from the front panel.
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