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参数资料
型号： M7020R-083ZA1T
厂商： 意法半导体
英文描述： 32K x 68-bit Entry NETWORK SEARCH ENGINE
中文描述： 32K的× 68位进入网络搜索引擎
文件页数： 8/150页
文件大小： 996K
代理商： M7020R-083ZA1T
M7020R
8/150
DESCRIPTION
Overview
ST Microelectronics, Inc.’s M7020R Search En-
gine incorporates patent-pending Associative Pro-
cessing Technology (APT) and is designed to
be a high-performance, pipelined, synchronous,
32K-entry network database search engine. The
M7020R database entry size can be 68 bits, 136
bits, or 272 bits. In the 68-bit entry mode, the size
of the database is 32K entries. In the 136-bit
mode, the size of the database is 16K entries, and
in the 272-bit mode, the size of the database is 8K
entries. The M7020R is configurable to support
multiple databases with different entry sizes. The
34-bit entry table can be implemented using the
Global Mask Registers (GMRs) building-database
size of 64K entries with a single device.
Performance
The Search Engine can sustain 83 million transac-
tions per second when the database is pro-
grammed or configured as 68 or 136 bits. When
the database is programmed to have an entry size
of 34 or 272 bits, the Search Engine will perform at
41.5 million transactions per second. STM’s
M7020R can be used to accelerate network proto-
cols such as Longest-prefix Match (CIDR), ARP,
MPLS, and other Layer 2, 3, and 4 protocols.
Applications
This high-speed, high-capacity Search Engine can
be deployed in a variety of networking and com-
munications applications. The performance and
features of the M7020R make it attractive in appli-
cations such as Enterprise LAN switches and rout-
ers and broadband switching and/or routing
equipment supporting multiple data rates at OC–
48 and beyond. The Search Engine is designed to
be scalable in order to support network database
sizes to 1984K entries specifically for environ-
ments that require large network policy databases.
Figure 4, page 11 shows the block diagram for the
M7020R device.
Table 1. Product Range
Figure 2. Switch/Router Implementation Using the M7020R
Part Number
Operating
Supply Voltage
Operating I/O
Voltage
Speed
Temperature Range
M7020R-083ZA1
1.8V
2.5 or 3.3V
83MHz
Commercial
M7020R-066ZA1
1.8V
2.5 or 3.3V
66MHz
Commercial
M7020R-050ZA1
1.8V
2.5 or 3.3V
50MHz
Commercial
Program
Memory
Switch
Fabric
Switch
Processor
Network Line Interfaces
System Bus
Host
ASIC
SRAM
Bank
Search
Engine
AI04272
相关PDF资料
PDF描述
M7020R 32K x 68-bit Entry NETWORK SEARCH ENGINE
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相关代理商/技术参数
参数描述
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M702-230642 功能描述:火线接头 IEEE 1394 SMT 6P HORIZONTAL RoHS:否 制造商:Molex 产品:IEEE 1394 Firewire Connectors 标准:IEEE 1394 位置/触点数量:6 节距:2 mm 触点电镀:Unplated 触点材料:Phosphor Bronze 型式:Female 电流额定值:0.5 A 安装风格:Through Hole 端接类型:Solder Tab 连接器类型:Firewire Receptacle
M7023 制造商:Tamura Corporation of America 功能描述:
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M7029 功能描述:数字万用表 Dual Display Multime 0.2% Accuracy RoHS:否 制造商:Tektronix 产品:Multimeters 类型:Bench 准确性:0.04 % 电压范围:2 V to 2 kV 电阻范围: 电容范围: 显示计数: 频率:10 Hz to 45 Hz, 850 Hz to 1 MHz 测距: 真均方根值: 数据保持:
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