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參數(shù)資料
| 型號： | PEX8548-AA25BI |
| 廠商： | PLX Technology, Inc. |
| 英文描述： | High-Performance 48-lane, 9-port PCIe Switch |
| 中文描述： | 高性能48通道，9端口PCIe交換器 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 320K |
| 代理商： | PEX8548-AA25BI |
Low Power with Granular SerDes Control
The PEX 8548 provides low power capability that is
fully compliant with the PCI Express power
management specification. In addition, the SerDes
physical links can be turned off when unused for even
lower power.
Flexible Port Width Configuration
The width of each port can be individually configured
through auto-negotiation, hardware strapping, host
software configuration, I
2
C interface, or through an
optional EEPROM.
The PEX 8548 supports a large number of port
configurations (see Figure 1). For example, if you are
using the PEX 8548 in a fan-out application, you may
configure the upstream port as a x16 and the
downstream as eight x4 ports; three x8 ports & two x4
ports; or various combinations, as long as you don’t run
out of lanes (48) or ports (9). For a dual-graphics
application, the device can be configured as three x16
ports.
PEX 8548
x16
PEX 8548
x16
PEX 8548
x16
x16
x16
x8
x4 x4
x8
x8
PEX 8548
x8
all x8
x8
x4x4
x4
x8
x4
Figure 1. Common Port Configurations
Low Packet Latency
The PEX 8548 supports packet
cut-thru
with a
maximum packet latency of 110ns between symmetric
x16 ingress and egress ports. The low latency enables
applications to achieve high throughput and
performance. In addition to low latency, the device
supports a packet payload size of up to 1024 bytes,
enabling the user to achieve even higher throughput.
Hot Plug for High Availability
Hot plug capability allows users to replace hardware
modules and perform maintenance without powering
down the system. The PEX 8548 hot plug capability and
a
dvanced error reporting
features make it suitable for
High Availability (HA) applications
. Three
downstream ports include a Standard Hot Plug
Controller. If the PEX 8548 is used in an application
where one or more of its downstream ports connect to
PCI Express slots, each port’s Hot Plug Controller can
be used to manage the hot-plug event of its associated
slot. Furthermore, its upstream port is a
hot-plug client
,
allowing it to be
used on hot-pluggable adapter cards,
backplanes, and fabric modules
.
Fully Compliant Power Management
For applications that require power management, the
PEX 8548 device supports both link (L0, L0s, L1, L2/L3
Ready, and L3) and device (D0 and D3hot) power
management states, in compliance with the PCI Express
power management specification.
SerDes Power and Signal Management
The PEX 8548 supports
software control
of the
SerDes
outputs
to allow optimization of power and signal
strength in a system. The PLX SerDes implementation
supports four levels of power – off, low, typical, and
high. The SerDes block also supports
loop-back modes
and
advanced reporting of error conditions
, which
enables efficient debug and management of the entire
system.
Applications
Suitable for
host-centric
as well as
peer-to-peer traffic
patterns,
the PEX 8548 can be configured for a wide
variety of form factors and applications.
Host Centric Fan-out
The PEX 8548, with its symmetric or asymmetric lane
configuration capability, allows user-specific tuning to a
variety of host-centric applications.
CPU
PEX 8548
Chip Set
Point
End
x8 or x16
x4
Memory
x8
x8
Figure 2. Fan-in/out Usage
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PEX8548-AA25BIG | High-Performance 48-lane, 9-port PCIe Switch |
| PEX8548-AARDK | High-Performance 48-lane, 9-port PCIe Switch |
| PEX8612 | PCIe Gen2, 5.0GT/s 12-lane, 3-port Switch |
| PEX8612-AA50BCG | PCIe Gen2, 5.0GT/s 12-lane, 3-port Switch |
| PEX8612-AARDK | PCIe Gen2, 5.0GT/s 12-lane, 3-port Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PEX8548-AA25BI G | 制造商:PLX Technology 功能描述:PCIE 48-LANE 9-PORT SWITCH BGA 制造商:PLX Technology 功能描述:PCIE, 48-LANE, 9-PORT SWITCH, BGA |
| PEX8548-AA25BIG | 功能描述:外圍驅(qū)動器與原件 - PCI 48 Lane 9 Port PCI Express Switch RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| PEX8548-AARDK | 功能描述:界面開發(fā)工具 Rapid Dev Kit For PEX 8548 RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| PEX8603-AA50NI-G | 功能描述:外圍驅(qū)動器與原件 - PCI 3 lane 3 port Gen 2 PCIe Switch RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| PEX8603-AB50NI G | 功能描述:PCI Express? Switch IC 3 Channel 136-aQFN (10x10) 制造商:broadcom limited 系列:- 包裝:托盤 零件狀態(tài):在售 應(yīng)用:PCI Express? 多路復(fù)用器/解復(fù)用器電路:- 開關(guān)電路:- 通道數(shù):3 導(dǎo)通電阻（最大值）:- 電壓 -?電源，單（V+）:- 電壓 - 電源，雙（V±）:- -3db 帶寬:- 特性:- 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:- 供應(yīng)商器件封裝:136-aQFN（10x10） 標(biāo)準(zhǔn)包裝:840 |
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