Click to expand full text
4-Lane 4-Port PCI Express® Switch
®
89HPES4T4 Data Sheet
Device Overview
The 89HPES4T4 is a member of IDT’s PRECISE™ family of PCI Express switching solutions. The PES4T4 is a 4-lane, 4-port peripheral chip that performs PCI Express Base switching. It provides connectivity and switching functions between a PCI Express upstream port and up to four downstream ports and supports switching between downstream ports.
Features
High Performance PCI Express Switch – Four 2.5 Gbps PCI Express lanes – Four switch ports – x1 Upstream port – Three x1 Downstream ports – Low latency cut-through switch architecture – Support for Max payload sizes up to 256 bytes – One virtual channel – Eight traffic classes – PCI Express Base Specification Revision 1.