Simultaneous write and search operation in a content addressable memory

A ternary content addressable memory (TCAM) device comprising an input interface having a first input for receiving first data and a second input for receiving second data; and a memory configured to write the first data into an address selected row of the memory at the same time that a comparison i...

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Bibliographische Detailangaben
Hauptverfasser: Deshpande, Chetan, Garg, Ritesh, Jedhe, Gajanan Sahebrao, Narvekar, Gaurang Prabhakar
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A ternary content addressable memory (TCAM) device comprising an input interface having a first input for receiving first data and a second input for receiving second data; and a memory configured to write the first data into an address selected row of the memory at the same time that a comparison is performed between the second data and at least one other row of the memory different from the address selected row. More particularly, the input interface may further have a third input for receiving a search enable signal and a fourth input for receiving a write enable signal, wherein the memory is configured to write the first data and perform the comparison in response to assertion of the search enable signal at the same time as assertion of the write enable signal. An associated method is also provided.