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89HPES32H8ZAARI Datasheet(PDF) 1 Page - Integrated Device Technology |
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89HPES32H8ZAARI Datasheet(HTML) 1 Page - Integrated Device Technology |
1 / 40 page 1 of 40 July 19, 2007 © 2007 Integrated Device Technology, Inc. IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. ® Device Overview The 89HPES32H8 is a member of the IDT PRECISE™ family of PCI Express® switching solutions. The PES32H8 is a 32-lane, 8-port system interconnect switch optimized for PCI Express packet switching in high- performance applications, supporting multiple simultaneous peer-to- peer traffic flows. Target applications include servers, storage, communi- cations, and embedded systems. Features ◆ High Performance PCI Express Switch – Eight maximum switch ports • Four main ports each of which consists of eight SerDes • Each x8 main port can further bifurcate to 2 x4-ports – Thirty-two 2.5 Gbps embedded SerDes • Supports pre-emphasis and receive equalization on per-port basis – Delivers 128 Gbps (16 GBps) aggregate switching capacity – Low-latency cut-through switch architecture – Support for Max Payload Size up to 2048 bytes – Supports two virtual channels and eight traffic classes – PCI Express Base Specification Revision 1.1 compliant ◆ Flexible Architecture with Numerous Configuration Options – Port arbitration schemes utilizing round robin algorithms – Virtual channels arbitration based on priority – Automatic per port link width negotiation to x8, x4, x2 or x1 – Automatic lane reversal on all ports – Automatic polarity inversion on all ports – Supports locked transactions, allowing use with legacy soft- ware – Ability to load device configuration from serial EEPROM – Ability to control device via SMBus ◆ Highly Integrated Solution – Requires no external components – Incorporates on-chip internal memory for packet buffering and queueing – Integrates thirty-two 2.5 Gbps embedded full duplex SerDes, 8B/10B encoder/decoder (no separate transceivers needed) ◆ Reliability, Availability, and Serviceability (RAS) Features – Redundant upstream port failover capability – Internal end-to-end parity protection on all TLPs ensures data integrity even in systems that do not implement end-to-end CRC (ECRC) Block Diagram Figure 1 Internal Block Diagram 8-Port Switch Core Frame Buffer Route Table Port Arbitration Scheduler DL/Transaction Layer SerDes x8/x4/x2/x1 DL/Transaction Layer SerDes x8/x4/x2/x1 DL/Transaction Layer SerDes x8/x4/x2/x1 DL/Transaction Layer SerDes x8/x4/x2/x1 89HPES32H8 Data Sheet 32-Lane 8-Port PCI Express® System Interconnect Switch |
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