CAM CIRCUIT AND ITS OUTPUT METHOD

摘要

A CAM circuit used in e.g., a cache memory and adapted to identify the address by specifying data. The CAM circuit comprises a data comparing section for comparing data stored in a memory section with data of a compare line while a match line is active and a match cancel circuit for forcedly making the match line inactive when both the word line and a write instruction signal are made active. When an instruction to carry out a write processing and a search processing are issued, it is unnecessary to inhibit simultaneous operation of the write processing and the search processing by forcedly assuming that the search result shows a mismatch at the write address.