Features

◆ High Performance PCI Express Switch

– Twelve 5 Gbps Gen2 PCI Express lanes

– Three switch ports

• One x4 upstream port

• Two x4 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

– Implements the following optional PCI Express features

• Advanced Error Reporting (AER) on all ports

• End-to-End CRC (ECRC)

• Access Control Services (ACS)

• Power Budgeting Enhanced Capability

• Device Serial Number Enhanced Capability

• Sub-System ID and Sub-System Vendor ID Capability

• VGA and ISA enable

• L0s and L1 ASPM

• ARI ECN

◆ 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

◆ On-Die Temperature Sensor

– Range of 0 to 127.5 degrees Celsius

– Three programmable temperature thresholds with over and

under temperature threshold alarms

– Automatic recording of maximum high or minimum low

temperature

◆ Legacy Support

– PCI compatible INTx emulation

– Bus locking

◆ Highly Integrated Solution

– Incorporates on-chip internal memory for packet buffering and

queueing