89HPES6T5

6-Lane 5-Port PCI Express® Switch ® 89HPES6T5 Data Sheet Device Overview The 89HPES6T5 is a member of IDT’s PRECISE™ family of PCI Express switching solutions. The PES6T5 is an 6-lane, 5-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 u High Performance PCI Express Switch – Six 2.5Gbps PCI Express lanes – Five switch ports – Upstream port is x2 – Downstream ports are x1 – 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 1.1 compliant u Flexible Architecture with Numerous Configuration Options – Automatic lane reversal on all ports – Automatic polarity inversion – Ability to load device configuration from serial EEPROM u Legacy Support – PCI compatible INTx emulation – Bus locking u Highly Integrated Solution – Requires no external components – Incorporates on-chip internal memory for packet buffering and queueing – Integrates six 2.5 Gbps embedded SerDes with 8B/10B encoder/decoder (no separate transceivers needed) u 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 – Su...