Express廬 switching solutions. The PES16T4G2 is a 16-lane, 4-port
storage, and communications/networking. It provides connectivity and
ports.
鈼?/div>
Features
Block Diagram
4-Port Switch Core / 16 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
Multiplexer / Demultiplexer
Phy
Logical
Layer
Multiplexer / Demultiplexer
Phy
Logical
Layer
Multiplexer / Demultiplexer
Phy
Logical
Layer
Multiplexer / Demultiplexer
Phy
Logical
Layer
SerDes
SerDes
SerDes
SerDes
(Port 0)
(Port 2)
(Port 4)
(Port 6)
Figure 1 Internal Block Diagram
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2007 Integrated Device Technology, Inc.
*Notice: The information in this document is subject to change without notice
September 4, 2007
DSC 6928
Advance Information
High Performance PCI Express Switch
鈥?Sixteen 5 Gbps Gen2 PCI Express lanes
鈥?Four switch ports
鈥?One x4 upstream port
鈥?Three x4 downstream ports
鈥?Low latency cut-through switch architecture
鈥?Support for Max Payload Size up to 2048 bytes
鈥?One virtual channel
鈥?Eight traffic classes
鈥?PCI Express Base Specification Revision 2.0 compliant
Flexible Architecture with Numerous Configuration Options
鈥?Automatic per port link width negotiation to x4, x2 or x1
鈥?Automatic lane reversal on all ports
鈥?Automatic polarity inversion
鈥?Ability to load device configuration from serial EEPROM
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Legacy Support
鈥?PCI compatible INTx emulation
鈥?Bus locking
鈼?/div>
Highly Integrated Solution
鈥?Incorporates on-chip internal memory for packet buffering and
queueing
鈥?Integrates sixteen 5 Gbps embedded SerDes with 8b/10b
encoder/decoder (no separate transceivers needed)
鈥?Receive equalization (RxEQ)
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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
鈥?Supports Hot-Swap
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