89HPES16T4G2 Datasheet | IDT

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 munications/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 Block Diagram 4-Port Switch Core / 16 PCI Express Lanes Frame Buffer Route Table Port Arbitration Scheduler Transaction Layer Data Link Layer Transaction Layer Data Link Layer Transaction Layer Data Link Layer Transaction Layer Data Link Layer Multiplexer / Demultiplexer Phy Logical Layer Multiplexer / Demultiplexer Phy Logical Layer Multiplexer / Demultiplexer Phy Logical Layer Multiplexer / Demultiplexer Phy Logical Layer Ser Des Ser Des Ser Des Ser Des (Port 0) (Port 2) (Port 4) (Port 6) Figure 1 Internal Block Diagram IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. 1 of 32 © 2007 Integrated Device Technology, Inc. - Notice: The information in this document is subject to change without notice September 4, 2007 DSC 6928 Advance Information 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...