89HPES4T4G2集成電路（IC）的專(zhuān)用規(guī)格書(shū)PDF中文資料

Features

? High Performance PCI Express Switch

– Four Gen2 PCI Express lanes supporting 5 Gbps and

2.5 Gbps operations

– Four switch ports

? One x1 upstream port

? Three x1 downstream ports

– Low latency cut-through switch architecture

– Support for Max Payload Size up to 2Kbytes

– Supports one virtual channel and eight traffic classes

– PCI Express Base Specification Revision 2.0 compliant

? Flexible Architecture with Numerous Configuration Options

– Automatic lane reversal on all ports

– Automatic polarity inversion

– Ability to load device configuration from serial EEPROM

? Legacy Support

– PCI compatible INTx emulation

– Bus locking

? Highly Integrated Solution

– Requires no external components

– Incorporates on-chip internal memory for packet buffering and

queueing

– Integrates four 5 Gbps embedded SerDes with 8b/10b

encoder/decoder (no separate transceivers needed)

? Receive equalization (RxEQ)

? 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

– All internal data and control RAMs are SECDED ECC

protected

– Supports PCI Express Native Hot-Plug, Hot-Swap capable I/O

– Compatible with Hot-Plug I/O expanders used on PC motherboards

– Supports Hot-Swap