Features • High Performance PCI Express Switch
— Ten 5 Gbps Gen2 PCI Express lanes
— Four switch ports
– One x4 upstream port
– Three x2 downstream ports
— Low latency cut-through switch architecture
— Support for Max Payload Size up to 2048 bytes
— One virtual channel
— Eight traffic classes
— PCI Express Base Specification Revision 2.0 compliant
• Flexible Architecture with Numerous Configuration Options
— Automatic per port link width negotiation to x4, x2 or x1
— 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
— Incorporates on-chip internal memory for packet buffering and
queueing
— Integrates ten 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
— 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