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Intel® Entry Server Board SE7221BA1-E TPS
5.
Input Output Subsystem
5.1
PCI Subsystem
5.1.1
PCI Express* Connectors
The Intel® Entry Server Board SE7221BA1-E provides the following PCI Express* connectors:
•
One PCI Express* x8 connector. The x8 interface supports simultaneous (full duplex)
transfer speeds up to 8 GBytes/sec. Single-ended (half duplex) transfers are
supported at up to 4 GBytes/sec.
•
Three PCI Express* x4 connectors. The x4 connectors will only function at x1
bandwidth. This connection support was selected to be able to have the additional
PCI Express* connections available and due to the greater availability of x4 adapter
cards.
•
The PCI Express* interface supports the PCI Conventional bus configuration
mechanism so that the underlying PCI Express* architecture is compatible with PCI
Conventional compliant operating systems. Additional features of the PCI Express*
interface include the following:
•
Support for the PCI Express* enhanced configuration mechanism
•
Automatic discovery, link training, and initialization
•
Support for Active State Power Management (ASPM)
•
SMBus 2.0 support
•
Wake# signal supporting wake events from ACPI S1, S4, or S5
•
Software compatible with the PCI Power Management Event (PME) mechanism
defined in the PCI Power Management Specification Rev. 1.1
NOTE
The Intel Server Board SE7221BA1-E features PCI Express x4 connectors, routed with a x1 lane and
limited to x1 throughput. Please refer to the PCI Express* Card Electromechanical Specification for
more information.,
5.1.2
PCI 32
Three 32-bit, 33 MHz PCI conventional slots.
5.2
LAN Subsystem
•
The LAN subsystem includes one Marvell Yukon* 88E8050 Gigabit (10/100/1000
Mbits/sec) and one Intel® 82551QM Integrated 10/100 LAN controller. Both network
controllers are available through the rear ATX I/O shield RJ-45 LAN connectors and
have integrated status LEDs.
5.2.1
Marvell Yukon* 88E8050 Gigabit Ethernet Controller
The Marvell Yukon* 88E8050 is an integrated PCI Express* Gigabit Ethernet controller with the
following functions:
•
x1 PCI Express* link
•
Basic 10/100/1000 Ethernet LAN connectivity
•
IEEE 802.1p and 802.1q support
•
10/100/1000 IEEE 802.3 compliant
Revision 1.5
Input Output Subsystem
27
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