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参数资料
| 型号： | PEX8648 |
| 厂商： | PLX Technology, Inc. |
| 英文描述： | PCIe Gen2, 5.0GT/s 48-lane, 12-port PCIe Switch |
| 中文描述： | 的PCIe Gen2，5.0GT / s的48通道，12端口PCIe交换器 |
| 文件页数： | 3/4页 |
| 文件大小： | 237K |
| 代理商： | PEX8648 |
Preliminary - PLX Confidential
CPU
CPU
CPU
CPU
x16
x4
Memory
x8
x8
x16
x16
x4
Endpoint
Chipset
Endpoint
PCIe Gen1 or PCIe Gen2 slots
Figure 3. Fan-in/out Usage
Communications Systems
The PEX 8648 can also be utilized in communications
applications. Figure 4 shows a PEX 8648 being used in a
router to connect multiple endpoints in a line card to the
control module using PowerPC. The link-widths for each
module can be configured as required. The peer-to-peer
communication feature of the PEX 8648 allows the
endpoints to communicate with each other without any
intervention or management by the host.
x8
PEX 8648
Memory
PowerPC
Point
End
Point
End
Control
Module
Line Card
Point
End
Point
End
Point
End
Point
End
PEX 8648
x8 or x4
Figure 4. Router Usage
Backplane Communication
With 48 lanes and 12 ports, the PEX 8648 is well suited
for backplane applications requiring high connectivity (a
large number of ports). Figure 5 represents an ATCA or
MicroTCA backplane application with two switch fabric
blades and multiple AMC blades. In this example, two
PEX 8648s provide peer-to-peer data exchange for up to
20 AMC blades connecting to the switch fabric. The
PEX 8648 utilizes its NT port to isolate the hosts on the
switch fabrics and the remaining 10 downstream ports
on each switch are used to fan-out to the 20 AMC blades
(or 10 AMC Carrier Modules).
10-20 AMC or 10 AMC
Carrier Modules
Fabric
To
Backplane
To other
Fabric
PEX 8648
PEX 8648
NT
CPU
Figure 5. ATCA/MicroTCA Backplane Usage
Fail-Over Storage Systems with Dual Cast
The PEX 8648’s Dual Cast feature proves to be very
useful in storage systems. In the example shown in
Figure 6, the Dual Cast feature enables the PEX 8648 to
copy data coming from the host to two downstream ports
(see yellow traffic patterns) in one transaction as
opposed to having to execute two separate transactions
to send data to the redundant chassis. By offloading the
task of backing up data onto the secondary system,
processor and system performance is enhanced. The
PEX 8648’s NT port is used to isolate the backup system
from the primary system.
8 Disk Chassis
Figure 6. Dual Cast in Storage Systems
FC
x4
x4
FC
8 Disk Chassis
FC
x4
x4
FC
8 Disk Chassis
FC
x4
x4
FC
8 Disk Chassis
FC
x4
x4
FC
x8
CPU
CPU
CPU
CPU
Memory
Chipset
CPU
CPU
CPU
CPU
x8
Memory
Chipset
x8
Backup
System
PEX 8648
PEX 8648
NT
PEX 8616
NT
PEX 8616
NT
PEX 8616
NT
PEX 8616
NT
All
x8s
All
x8s
相关PDF资料 |
PDF描述 |
|---|---|
| PEX8648-AA50BCG | PCIe Gen2, 5.0GT/s 48-lane, 12-port PCIe Switch |
| PEX8648-AARDK | PCIe Gen2, 5.0GT/s 48-lane, 12-port PCIe Switch |
| PF0348 | 4.5A, 500kHz Step-Down Switching Regulator; Package: SO; No of Pins: 8; Temperature Range: -40°C to +85°C |
| PF0349 | 4.5A, 500kHz Step-Down Switching Regulator; Package: SO; No of Pins: 8; Temperature Range: -40°C to +85°C |
| PF0350 | 4.5A, 500kHz Step-Down Switching Regulator; Package: SO; No of Pins: 8; Temperature Range: -40°C to +85°C |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PEX8648-AA50BCG | 制造商:PLX 制造商全称:PLX 功能描述:PCIe Gen2, 5.0GT/s 48-lane, 12-port PCIe Switch |
| PEX8648-AARDK | 制造商:PLX 制造商全称:PLX 功能描述:PCIe Gen2, 5.0GT/s 48-lane, 12-port PCIe Switch |
| PEX8648-BB50B8F | 功能描述:外围驱动器与原件 - PCI 48 Lane, 12 Port PCI Express Gen 2 Switch RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| PEX8648-BB50BIF | 功能描述:外围驱动器与原件 - PCI 48 Lane 12 Port PCIe Switch RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| PEX8648-BB50RBC F | 功能描述:PCI Express? Switch IC 676-FCBGA (27x27) 制造商:broadcom limited 系列:ExpressLane? 包装:托盘 零件状态:在售 应用:PCI Express? 多路复用器/解复用器电路:- 开关电路:- 通道数:- 导通电阻（最大值）:- 电压 -?电源，单（V+）:- 电压 - 电源，双（V±）:- -3db 带宽:- 特性:可配置 工作温度:- 封装/外壳:- 供应商器件封装:676-FCBGA（27x27） 标准包装:200 |
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