英语翻译Figure 2 shows a typical fan-out design,where the proces

英语翻译
Figure 2 shows a typical fan-out design,where the processor
provides a PCI Express link that needs to be fanned into a
larger number of smaller ports for a variety of I/O functions,
each with different bandwidth requirements.
In this example,the PEX 8604 would typically have a 1-lane
upstream port,and three downstream ports.The downstream
ports provide x1 PCI Express connectivity to the endpoints.
With its four ports,the PEX 8604 can provide fan-out
connectivity to up to three PCI Express devices.The figure
also shows how some of the ports can be bridged to provide
PCI slots through the use of the PEX 8112 PCIe bridging
devices.
Consumer Applications
With its small footprint,the PEX 8604 is ideal for consumer
applications.Figure 3 shows an example for a set top box.
The PEX8604 connects to legacy devices using a PEX85112 (PCIe to PCI bridge).The four ports in the PEX8604 provide
connectivity between the processor to up to three peripherals
each via an x1 connection.This usage model provides
connectivity within a set top box between the control
processor and the various endpoints.Mobile Wireless Adaptor
PEX 8604 devices can be used in applications where low
power consumption is of importance as is the case in mobile
applications.An example of a mobile wireless adapter card is
shown in Figure 4.
Embedded Mezzanine Module
The PEX 8604 is well suited for mezzanine module
applications.Figure 5 shows that the mezzanine card has a
local processor and a local PCIe hierarchy with the PEX8604
and multiple endpoints.Additionally,the non-transparent
port in the PEX8604 allows the mezzanine to interface with
the main CPU in the Baseboard as well as other mezzanine
modules.Intelligent Adapter Card
The PEX 8604 supports the non-transparency feature.
Figure 6 illustrates a host system using an intelligent adapter
card.In this figure,the CPU on the adapter card is isolated from the host CPU.The PEX 8604 non-transparent port allows the two CPUs to be isolated but communicate with each other through
various registers that are designed in the PEX 8604 for that
purpose.The host CPU can dynamically re-assign both the
upstream port and the non-transparent port of PEX 8604
allowing the system to be reconfigured.
Active-Standby Failover Model
The PEX 8604 supports applications requiring dual host,host
failover applications through the non-transparency (NTB)
feature.Figure 7 illustrates a dual host system with an active
and standby processor configuration.The redundancy of the host and the fabric can be achieved through many possible configurations using NTB function of PEX 8604.

图2显示一个典型的扇出设计,在处理器
提供一个PCI Express连结,需要加以煽动成
较大的一些较小的港口的各种I / O功能,
每一个不同的带宽需求.
在这个例子中,交联聚乙烯8604通常有一个一车道
上游港口,三个下游港口.下游
港口提供的PCI Express接口连接到终点.
凭借其四个港口,交联聚乙烯8604可以提供扇出
连接三个PCI Express设备.这个数字
也说明一些港口可以弥补提供
PCI插槽通过使用交联聚乙烯8112的PCIe桥接
设备.
消费应用
凭借其小巧的交联聚乙烯8604是理想的消费者
应用.图3显示的榜样机顶盒.
该PEX8604连接到原有设备使用PEX85112 （的PCIe至PCI桥） .这四个港口的PEX8604提供
之间的连接处理器,最多三个外设
每通过一个x1连接.这种使用模式提供
内连接机顶盒之间的控制
处理器和各种无线适配器endpoints.Mobile
交联聚乙烯8604器件可用于在应用低
能耗具有重要意义如在移动
应用.例如,移动无线适配器卡
如图4 .
嵌入式夹层模块
该管材8604非常适合夹层模块
应用.图5表明,夹层卡了
当地的处理器和一个地方的PCIe层次的PEX8604
和多种终端.此外,非透明
港口PEX8604允许夹层接口与
主CPU在基板以及其他夹层
modules.Intelligent适配卡
该管材8604支持不透明度的功能.
图6显示了主机系统采用智能卡
card.In这个数字时,CPU的卡是孤立于主机CPU .8604的交联聚乙烯不透明端口允许两个CPU的被孤立,但互相沟通通过
各种登记簿,这种设计是在交联聚乙烯为8604
目的.主机CPU可以动态地重新分配的
上游港口和非透明港交8604
使系统重新配置.
主动待机故障模式
8604的交联聚乙烯的应用,需要支持双主机,主机
容错应用通过非透明（非关税壁垒）
特征.图7显示了双主机系统与积极的
和待机configuration.The冗余处理器的主机和织物可以通过许多可能的配置使用非关税壁垒功能的交联聚乙烯8604 .