鈼?/div>
Highly Integrated Solution
鈥?Requires no external components
鈥?Incorporates on-chip internal memory for packet buffering and
queueing
鈥?Integrates five 2.5 Gbps embedded SerDes with 8B/10B
encoder/decoder (no separate transceivers needed)
Reliability, Availability, and Serviceability (RAS) Features
鈥?Internal end-to-end parity protection on all TLPs ensures data
integrity even in systems that do not implement end-to-end
CRC (ECRC)
鈥?Supports ECRC and Advanced Error Reporting
鈥?Supports PCI Express Native Hot-Plug, Hot-Swap capable I/O
鈥?Compatible with Hot-Plug I/O expanders used on PC mother-
boards
Power Management
鈥?Utilizes advanced low-power design techniques to achieve low
typical power consumption
鈥?Supports PCI Power Management Interface specification (PCI-
PM 1.2)
鈥?Unused SerDes are disabled.
鈥?Supports Advanced Configuration and Power Interface Speci-
fication, Revision 2.0 (ACPI) supporting active link state
Testability and Debug Features
鈥?Built in Pseudo-Random Bit Stream (PRBS) generator
鈥?Numerous SerDes test modes
鈥?Ability to read and write any internal register via the SMBus
鈥?Ability to bypass link training and force any link into any mode
鈥?Provides statistics and performance counters
Block Diagram
5-Port Switch Core / 5 PCI Express Lanes
Frame Buffer
Route Table
Port
Arbitration
Scheduler
Transaction Layer
Data Link Layer
Transaction Layer
Data Link Layer
Transaction Layer
Data Link Layer
Transaction Layer
Data Link Layer
Transaction Layer
Data Link Layer
Mux / Demux
Phy
Logical
Layer
Mux / Demux
Phy
Logical
Layer
Mux / Demux
Phy
Logical
Layer
Mux / Demux
Phy
Logical
Layer
Mux / Demux
Phy
Logical
Layer
SerDes
SerDes
SerDes
SerDes
SerDes
(Port 0)
(Port 2)
(Port 3)
Figure 1 Internal Block Diagram
(Port 4)
(Port 5)
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.
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漏
2007 Integrated Device Technology, Inc.
*Notice: The information in this document is subject to change without notice
September 7, 2007
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