89HPES48T12

www.DataSheet4U.com 48-Lane 12-Port PCI Express® Switch ® 89HPES48T12 Data Sheet Device Overview The 89HPES48T12 is a member of the IDT PRECISE™ family of PCI Express® switching solutions. The PES48T12 is a 48-lane, 12-port peripheral chip that performs PCI Express packet 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 eleven downstream ports and supports switching between downstream ports. ◆ Features ◆ High Performance PCI Express Switch – Twelve switch ports Six main ports each of which consists of 8 SerDes Each x8 main port can further bifurcate to 2 x4-ports – Forty-eight 2.5 Gbps embedded SerDes Supports pre-emphasis and receive equalization on per-port basis – Delivers 192 Gbps (24 GBps) of aggregate switching capacity – Low-latency cut-through switch architecture – Support for Max Payload Size up to 2048 bytes ◆ ◆ – Supports one virtual channel 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 – Automatic per port link width negotiation to x8, x4, x2 or x1 – Automatic lane reversal on all ports – Automatic polarity inversion on all lanes – Supports locked transactions, allowing use with legacy software – Ability to load device configu...