R8A20210BG データシートの表示（PDF） - Renesas Electronics

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R8A20210BG

Network Address Search Engine (9 M/18 M-bit Full Ternary CAM)

Renesas Electronics 

R8A20211BG/R8A20210BG (MARIE_Blade)

Network Address Search Engine

(9 M/18 M-bit Full Ternary CAM)

REJ03H0001-0100

Rev.1.00

Feb 21, 2005

Description

Renesas delivers MARIE_Blade that is a ternary CAM search engine targeted for network packet classifying. The full-

custom CAM memory realizes large capacity, high density and low power consumption.

MARIE_Blade can realize up to 133 Msps in 72-bit/144-bit normal mode (parallel search 266 Msps), 66.5 Msps in 288-

bit mode (parallel search 133 Msps) and 33 Msps in 576-bit mode (parallel search 66.5 Msps). The Hierarchical search

reduces power consumption; The DX test logic, an extended bit, performs a DX test logic search first (primary search),

and the DQ pin performs a DQ array search (secondary search). The parity bit in the DQ array can check for errors as

an additional function.

Features

• 9 M/18 M-bit full ternary CAM

• CLK operating frequency 266 MHz Max

• Maximum search rate at normal mode: 133 Msps [72-bit/144-bit lookup size]

• Maximum search rate at parallel mode: 266 Msps [72-bit/144-bit lookup size]

• Maximum search rate at normal mode: 66.5 Msps [288-bit lookup size]

• Maximum search rate at parallel mode: 133 Msps [288-bit lookup size]

• Maximum search rate at parallel mode: 33 Msps [576-bit lookup size]

• Maximum search rate at normal mode: 66.5 Msps [576-bit lookup size]

• Priority encoder

• Hierarchical search

• Parity bit (even parity) check

• IEEE 1149.1 test port

• 1.2 V core power supply

• 1.2 V power supply for search (1.0 V power supply for power saving)

• SSTL-2 interface/2.5 V I/O power supply

Rev.1.00 Feb 21, 2005 page 1 of 14

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