Search memory
AssigneeRenesas Electronics Corporation
InventorHideto MATSUOKA
Life of this patent
Estimating the term…
Abstract
Provided is a search memory capable of suppressing an increase in the area of a chip and an increase in the amount of current consumption. The search memory includes an input control section, N search units, and N first selectors. The input control section receives N (N: two or more) search data that are parallelly inputted. The N first selectors are respectively disposed in association with the N search units to select two search data from the N search data. The search units each include multiple search blocks and M second selectors. The M second selectors select one of two search data selected by the first selectors. For at least one of the N search units, allocation is performed so that two types out of N types of entry data respectively associated with the N search data are respectively stored in the search blocks.
Claims7
A search memory that performs a search to determine whether inputted search data matches entry data stored in a memory cell array, and outputs address information associated with matching entry data, the search memory comprising:
- an input control section that receives the inputs of N (N:
- two or more) search data that are parallelly inputted;
- N search units;
- and
- N first selectors that are respectively disposed in association with the N search units in order to select two search data from the N search data,
- wherein the search units each include:
- a plurality of search blocks;
- and
- M second selectors that are respectively disposed in association with the search blocks in order to select one of two search data selected by the first selectors disposed for the associated search units, and
- wherein, for at least one of the N search units, allocation is performed so that two types out of N types of entry data respectively associated with the N search data are respectively stored in the search blocks.
Dependencies are inferred from the claim text.