89HPES8T5A Datasheet | IDT

Overview - The 89HPES8T5A is a member of IDT’s PRECISE™ family of PCI Express switching solutions. The PES8T5A is an 8-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 - - High Performance PCI Express Switch - Eight 2.5Gbps PCI Express lanes - Five switch ports - Upstream port is x4 - 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 pliant Flexible Architecture with Numerous Configuration Options - Automatic lane reversal on all ports - Automatic polarity inversion on all lanes - Ability to load device configuration from serial EEPROM Legacy Support - PCI patible INTx emulation - Bus locking - - Highly Integrated Solution - Requires no external ponents - Incorporates on-chip internal memory for packet buffering and queueing - Integrates eight 2.5 Gbps embedded Ser Des with 8B/10B encoder/decoder (no separate transceivers needed) 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 - patible with Hot-Plug I/O expanders used on PC motherboards Power Management - Utilizes advanced low-power design techniques to achieve low typical power consumption - Supports PCI Power Management Interface specification (PCIPM 1.2) - Unused Ser Des are disabled. - Supports Advanced Configuration and Power Interface Specification, Revision 2.0 (ACPI) supporting active link state Testability and Debug Features - Built in Pseudo-Random Bit Stream (PRBS) generator - Numerous Ser Des...