Importance

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Abstract

Disclosed is a semiconductor device that writes, into respective memory spaces of a plurality of divisional memories constituting a search memory mat, an entry address corresponding to key data to be written. In this semiconductor device, pieces of divisional data are assigned respectively to the divisional memories, and, by employing each divisional data as an address, an entry address corresponding to said divisional data is written sequentially into a memory space specified by a memory address of each said divisional memory (first writing process). In this first writing process, if another entry address is already written in an accessed memory space, no entry address is written into that memory space. If an entry address corresponding to one of the plurality of pieces of divisional data is successfully written into a memory space, the first writing process is ended.

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First Claim