Intel S5520SC Specifiche Pagina 52

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Functional Architecture Intel® Workstation Board S5520SC TPS
Revision 1.7
Intel order number: E39530-010
38
3.4.2 USB 2.0 Support
The USB controller functionality integrated into the ICH10R provides the workstation board with
an interface for up to 10 USB 2.0 ports. All ports are high-speed, full-speed, and low-speed
capable.
Four external connectors are located on the back edge of the workstation board.
Two internal 2x5 headers (J1D1 and J1D4) are provided; each is capable of supporting
two optional USB 2.0 ports.
One internal USB port type A connector (J1H2) is provided to support the installation of
a USB device inside the server chassis.
One internal low-profile 2x5 header (J1D3) is provided to support a low-profile USB Solid
State Drive.
Note: Each USB port supports a maximum 500 mA current. Only supports up to eight USB
ports to draw maximum current concurrently.
3.5 PCI Subsystem
The primary I/O buses for the Intel
®
Workstation Board S5520SC are PCI, PCI Express* Gen1,
and PCI Express* Gen2 with six independent PCI bus segments.
PCI Express* Gen1 and Gen2 are dual-simplex point-to point serial differential low-voltage
interconnects. A PCI Express* topology can contain a Host Bridge and several endpoints (I/O
devices). The signaling bit rate is 2.5 Gbit/s one direction per lane for Gen1 and 5.0 Gbit/s one
direction per lane for Gen2. Each port consists of a transmitter and receiver pair. A link between
the ports of two devices is a collection of lanes (x1, x2, x4, x8, x16, and so forth) All lanes within
a port must transmit data using the same frequency. The PCI buses comply with the PCI Local
Bus Specification, Revision 2.3.
The following tables list the characteristics of the PCI bus segments. Details about each bus
segment follow the table.
Table 8. Intel
®
Workstation Board S5520SC PCI Bus Segment Characteristics
PCI Bus Segment Voltage Width Speed Type PCI I/O Card Slots
PCI32
ICH10R
5 V 32 bit 33 MHz PCI PCI Slot 1;
IEEE 1394a Controller;
PE1, PE2, PE3, PE4
ICH10R PCI
Express* Ports
3.3 V X4 10 Gb/s PCI
Express*
Gen1
x4 PCI Express* Gen1 throughput to Slot 2
(x8 Mechanically) and SAS Module Slot
(Default to Slot 2, and switch to SAS Module
slot when Intel® SAS Entry RAID Module
AXX4SASMOD is detected)
This PCI Express* Gen1 slot is not available
when the SAS module slot is in use and vice
versa.
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