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PEX8114RDK-R PDF预览

PEX8114RDK-R

更新时间： 2024-11-23 06:00:15
品牌 Logo 应用领域
PLX PC
页数 文件大小 规格书
4页 1335K
描述
PCI Express-to-PCI/PCI-X Bridge

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PEX8114RDK-R 数据手册

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Version 5.0 2007  
PEX 8114  
ExpressLane™ PCI Express-to-PCI/PCI-X Bridge  
Features  
ƒ General Features  
o Forward and Reverse bridging  
o Reverse bridging root functions  
o Transparent bridging  
o Standard 256 Plastic BGA package  
(17mm x 17mm)  
Flexible, High-Performance Bridge in a Small Package  
The PLX Technology ExpressLane™ PEX 8114 is a high performance bridge that  
enables designers to migrate legacy PCI and PCI-X bus interfaces to the new  
advanced serial PCI Express™ interface. This flexible device supports forward and  
reverse transparent bridging.  
o Leaded and lead-free ROHS versions  
available  
o Low power – 2W  
o No heat sink required  
o EEPROM configuration option  
o 1.0 V core supply voltage  
o DC and AC JTAG (1149.1 and  
1149.6)  
The bridge is equipped with a standard, but flexible PCI Express port that scales to  
x1, x2 or x4 lanes with a maximum of 1 Gigabyte per second of throughput per  
transmit and receive direction. With four 2.5 Gbps integrated SerDes, the standard  
PCI Express signaling delivers the highest bandwidth with the lowest possible pin  
count using LVDS technology.  
ƒ Scalable PCI Express Interface  
o x4 Link (configurable as x1, x2 or x4)  
o Full-duplex PCI Express lanes;  
2.5 Gbps each  
The ExpressLane PEX 8114 has a single parallel bus segment supporting the  
advanced PCI-X protocol, with a 64-bit wide parallel data path running at 133MHz.  
The bridge also supports conventional PCI operation.  
o Automatic lane reversal  
o 8b/10b encoding  
o Link training (auto-negotiate to  
smallest link width)  
o 256 byte maximum payload size  
o PCI Express Base specification 1.0a  
compliant  
While both sides of the bridge are evenly matched, the device also supports internal  
queues with flow control features to optimize throughput and traffic flow.  
The small 17mm x 17mm footprint in standard Plastic BGA packaging makes the  
ExpressLane PEX 8114 ideal for a variety of applications where board real estate is  
at a premium. Leaded and lead-free ROHS versions are available.  
o End-to-end CRC and data poisoning  
o Advanced error reporting  
o Link and device power management  
o Advanced flow control  
o Hot Plug  
Forward and Reverse Bridging  
Compliant to the PCI Express-to-PCI/PCI-X Bridge Specification 1.0, the  
ExpressLane PEX 8114 is capable of operating in either forward or reverse bridging  
modes. In forward mode, the bridge allows legacy PCI or PCI-X chips and adapters  
to be used with new PCI Express processor systems. Reverse bridge operation allows  
conventional PCI or PCI-X processors and chipsets to configure and control  
advanced PCI Express switches and endpoints. The reverse bridge not only allows  
complete configuration of a downstream PCI Express system from the PCI/PCI-X  
bus, but it also handles limited PCI Express root functions for reverse interrupt and  
advanced error handling.  
o Turn off unused lanes for power  
reduction  
ƒ Advanced PCI-X Interface  
o PCI-X (v 1.0b): 64 bits at 133, 100 or  
66 MHz  
o PCI 3.0: 32 or 64 bits at 66, 50, 33 or  
25 MHz  
o 8-outstanding split transactions  
o Internal arbiter supports up to 4  
external masters  
o 3.3V I/O  
o Message Signal Interrupt (MSI)  
support  
High Performance PCI Express Interface  
The fully integrated PCI Express interface incorporates many of the advanced  
protocol features in PCI Express such as Automatic Lane Reversal, ECRC, Data  
Poisoning, Link State Power Management and Hot Plug. The single link scales from  
x4 to x2 or x1 operation through configuration or automatic link training. This  
enables the user to reduce power consumption by turning off unused lanes.  
o Provides up to four PCI/PCI-X clocks  
o Scratchpad and doorbell registers  
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