Error Detection and Correction in Ternary Content Addressable Memory (TCAM)

摘要

A ternary content addressable memory (TCAM) is disclosed. The TCAM includes a memory array, a data match module, and compare circuitry. The memory array stores a data entry for a data word and a corresponding duplicate data entry for the data word. The data match module compares the data entry to an input word to produce a first match output, and compares the duplicate data entry to the input word to produce a second match output. The compare circuitry compares the first match output and the second match output.

主权项

1. A ternary content addressable memory (TCAM) comprising:
a memory array configured to store a data entry for a data word and a corresponding duplicate data entry for the data word; a data match module configured to compare the data entry to an input word to produce a first match output, and to compare the duplicate data entry to the input word to produce a second match output; and compare circuitry configured to compare the first and second match outputs.