89HPES8T5A Description
8-Lane 5-Port PCI Express® Switch ® 89HPES8T5A Data Sheet Device 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.
89HPES8T5A Key Features
- 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
- Automatic lane reversal on all ports