Features

◆ High Performance PCI Express Switch

– Six Gen2 PCI Express lanes supporting 5 Gbps and

2.5 Gbps operation

• One x1 upstream port

• Five 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

– Supports in-band hot-plug presence detect capability

– Supports external signal for hot plug event notification allowing

SCI/SMI generation for legacy operating systems

– Configurable downstream port PCI-to-PCI bridge device

numbering

– Crosslink support

– Supports ARI forwarding defined in the Alternative Routing-ID

Interpretation (ARI) ECN for virtualized and non-virtualized

environments

– Ability to load device configuration from serial EEPROM

◆ Legacy Support

– PCI compatible INTx emulation

– Supports bus locked transactions, allowing use of PCI Express

with legacy software

◆ Highly Integrated Solution

– Requires no external components

– Incorporates on-chip internal memory for packet buffering and

queueing

– Integrates six 5 Gbps / 2.5 Gbps embedded SerDes, 8B/10B

encoder/decoder (no separate transceivers needed)

◆ Reliability, Availability, and Serviceability (RAS) Features

– Ability to disable peer-to-peer communications

– Supports ECRC and Advanced Error Reporting

– All internal data and control RAMs are SECDED ECC

protected

– Supports PCI Express hot-plug on all downstream ports

– Supports upstream port hot-plug

– Hot-swap capable I/O

– External Serial EEPROM contents are checksum protected