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PEX8505-AA25BIG Datasheet(PDF) 1 Page - PLX Technology |
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PEX8505-AA25BIG Datasheet(HTML) 1 Page - PLX Technology |
1 / 4 page www.plxtech.com Flexible & Versatile PCI Express® Switch . Features PEX 8505 General Features o 5-lane PCI Express switch - Gen 1 (2.5Gbps) Integrated SerDes o Up to 5 ports (x1, x2) o 15mm x 15mm, 196-ball PBGA pkg. o Typical Power: 0.8 Watts PEX 8505 Key Features o Standards Compliant - PCI Express Base Specification, r1.1 - PCI Power Management Interface Specification r1.2 o High Performance - Cut-thru with low packet latency - Max Payload Size of 1024 Bytes - Non-blocking internal architecture - Full line rate on all ports o Flexible Configuration - Five flexible & configurable ports (x1, x2) - Lane and polarity reversal - Configurable with strapping pins, EEPROM, I2C or Host software o PCI Express Power Management - Link power management states: L0, L0s, L1, L2/L3 Ready and L3 - Device states: D0 and D3hot o Quality of Service (QoS) - One Virtual Channel per port - Eight Traffic Classes per port - Weighted Round-Robin Ingress Port Arbitration o Reliability, Availability, Serviceability - 3 Standard Hot-Plug Controllers supporting PCI SHPC spec r1.0 - Transaction layer end-to-end CRC - Poison bit support - Basic and Advanced Error Reporting support - Per port error diagnostics • Bad DLLPs • Bad TLPs • CRC errors and more - Fatal Error (FATAL_ERR#) signal (legacy SERR equivalent) - INTA# signal - Port status bits - Eight software controllable General Purpose Output (GPO) signals - JTAG boundary scan Low-Power 5-Lane, 5-Port ExpressLaneTM PCIe Switch The PEX 8505 device offers PCI Express switching capability conforming to the PCI Express Base specification revision 1.1. This device enables users to add scalable high bandwidth, non-blocking interconnects at the lowest cost to a wide variety of applications including communications platforms, consumer products, servers, storage systems, blade servers, industrial systems and embedded-control products. The PEX 8505 can be used as a fan-out, or peer-to-peer switch, and is well-suited for Control Plane Applications, I/O Expansion, Video Surveillance, Multi- Function Printers, DVRs, Industrial Control Systems, Medical Imaging Systems, Embedded Systems and AMC modules. Port Configurations The PEX 8505 offers five lanes and up to five ports supporting x1 and x2 lane widths. The PEX 8505 features a flexible central packet memory that allocates a memory buffer for each port as required by the application or endpoint. This buffer allocation along with the device's flexible packet flow control minimizes bottlenecks when the upstream and aggregated downstream bandwidths do not match. High Performance The PEX 8505 architecture supports packet cut-thru with low latency (138ns). This, combined with large packet memory (up to 1024 byte maximum payload size) and non-blocking internal switch architecture, provides full line rate on all ports for performance hungry applications such as docking stations, control planes, embedded systems and AMC modules. End-to-End Packet Integrity The PEX 8505 provides end-to-end CRC protection (ECRC) and Poison-bit support to enable designs that require end-to-end data integrity. These features are optional in the PCI Express specification, but PLX provides them across its entire ExpressLane switch product line. Configuration Flexibility The PEX 8505 provides several ways to configure its operations. The device can be configured through strapping pins, I2C interface, CPU configuration cycles, or an optional serial EEPROM. This allows for easy debug during the development phase, performance monitoring during the operation phase, and driver or software upgrade. Interoperability The PEX 8505 is designed to be fully compliant with the PCI-SIG PCI Express base specification revision 1.1. Additionally, it supports auto-negotiation, lane reversal, and polarity reversal. The PEX 8505 also undergoes thorough Interoperability testing in PLX’s Interoperability Lab. Low Power with Granular SerDes Control The PEX 8505 provides low power capability that is fully compliant with the PCI Express power management specification. For even lower power, the SerDes physical links can be programmed for desired power or turned off when unused. PEX 8505 Version 1.0 2007 |
Similar Part No. - PEX8505-AA25BIG |
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Similar Description - PEX8505-AA25BIG |
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