Features
 High Performance PCI Express Switch
– Four Gen2 PCI Express lanes supporting 5 Gbps and
2.5 Gbps operations
– Four switch ports
• One x1 upstream port
• Three x1 downstream ports
– Low latency cut-through switch architecture
– Support for Max Payload Size up to 2Kbytes
– Supports one virtual channel and eight traffic classes
– PCI Express Base Specification Revision 2.0 compliant
 Flexible Architecture with Numerous Configuration Options
– Automatic lane reversal on all ports
– Automatic polarity inversion
– Ability to load device configuration from serial EEPROM
 Legacy Support
– PCI compatible INTx emulation
– Bus locking
 Highly Integrated Solution
– Requires no external components
– Incorporates on-chip internal memory for packet buffering and
queueing
– Integrates four 5 Gbps embedded SerDes with 8b/10b
encoder/decoder (no separate transceivers needed)
• Receive equalization (RxEQ)
 Reliability, Availability, and Serviceability (RAS) Features
– Internal end-to-end parity protection on all TLPs ensures data
integrity even in systems that do not implement end-to-end
CRC (ECRC)
– Supports ECRC and Advanced Error Reporting
– All internal data and control RAMs are SECDED ECC
protected
– Supports PCI Express Native Hot-Plug, Hot-Swap capable I/O
– Compatible with Hot-Plug I/O expanders used on PC motherboards
– Supports Hot-Swap