Introduction - 2.6 English

Ternary CAM Search v2.6 LogiCORE IP Product Guide (PG318)

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2.6 English

The Ternary CAM Search LogiCORE IP (TCAM) implements an associative array data structure also known as a ternary content-addressable memory. The TCAM stores (key, mask, priority, response) entries with arbitrary key, mask, priority and response values and allows the retrieval of the response based on a ternary match of all bits of the masked search key with all bits of the masked key. The key is bit maskable allowing arbitrary bits in the key to be set to ternary state (don't care). Ternary matching allows multiple entries to match and the priority value of the entry determines the winning response.