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89HPES16T4G2ZABXG Datasheet(PDF) 1 Page - Integrated Device Technology |
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89HPES16T4G2ZABXG Datasheet(HTML) 1 Page - Integrated Device Technology |
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1 / 32 page  1 of 32 September 4, 2007 © 2007 Integrated Device Technology, Inc. *Notice: The information in this document is subject to change without notice DSC 6928 ® IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. Device Overview The 89HPES16T4G2 is a member of IDT’s PRECISE™ family of PCI Express® switching solutions. The PES16T4G2 is a 16-lane, 4-port Gen2 peripheral chip that performs PCI Express Base switching with a feature set optimized for high performance applications such as servers, storage, and communications/networking. It provides connectivity and switching functions between a PCI Express upstream port and up to three downstream ports and supports switching between downstream ports. Features ◆ High Performance PCI Express Switch – Sixteen 5 Gbps Gen2 PCI Express lanes – Four switch ports • One x4 upstream port • Three 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 ◆ 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 sixteen 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 mother- boards – Supports Hot-Swap Block Diagram Figure 1 Internal Block Diagram 4-Port Switch Core / 16 PCI Express Lanes Frame Buffer Route Table Port Arbitration Scheduler SerDes Phy Logical Layer Multiplexer / Demultiplexer Transaction Layer Data Link Layer Multiplexer / Demultiplexer Transaction Layer Data Link Layer Multiplexer / Demultiplexer Transaction Layer Data Link Layer (Port 0) (Port 2) (Port 6) Multiplexer / Demultiplexer Transaction Layer Data Link Layer (Port 4) SerDes Phy Logical Layer SerDes Phy Logical Layer SerDes Phy Logical Layer 89HPES16T4G2 Data Sheet Advance Information* 16-Lane 4-Port Gen2 PCI Express® Switch |
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