DESCRIPTION
Overview
ST Microelectronics, Inc.’s M7020R Search Engine incorporates patent-pending Associative Processing 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.

FEATURES SUMMARY
■ 32K DATA ENTRIES IN 68-BIT MODE
■ TABLE MAY BE PARTITIONED INTO UP TO FOUR (4) QUADRANTS (Data entry width in each octant is configurable as 34, 68, 136, or 272 bits.)
■ UP TO 83 MILLION SUSTAINED SEARCHES PER SECOND IN 68-BIT and 136-BIT CONFIGURATIONS
■ UP TO 41.5 MILLION SEARCHES PER SECOND IN 34-BIT and 272-BIT CONFIGURATIONS
■ SEARCHES ANY SUB-FIELD IN A SINGLE CYCLE
■ OFFERS BIT-BY-BIT and GLOBAL MASKING
■ SYNCHRONOUS, PIPELINED OPERATION
■ UP TO 31 SEARCH ENGINES CASCADABLE WITHOUT PERFORMANCE DEGRADATION
■ WHEN CASCADED, THE DATABASE ENTRIES CAN SCALE FROM 248K TO 1984K DEPENDING ON THE WIDTH OF THE ENTRY
■ GLUELESS INTERFACE TO INDUSTRY STANDARD SRAMS
■ SIMPLE HARDWARE INSTRUCTION INTERFACE
■ IEEE 1149.1 TEST ACCESS PORT
■ OPERATING SUPPLY VOLTAGES INCLUDE: VDD (Operating Supply Voltage) = 1.8V VDDQ (Operating Supply Voltage for I/O) = 2.5 or 3.3V
■ 272 PBGA, 27mm x 27mm