Claims
- 1. A CAM (content addressable memory) comprising:
- match lines running parallel to bit lines;
- RAM storage means which is divided into a number of blocks, with match lines not spanning multiple blocks;
- each block being further divided into a number of sub-blocks n, corresponding to the number of bits in the memory word width;
- each sub-block having s*m rows, m being the number of match lines running physically over top of each RAM cell, s being the number of serial cycles required to complete the search, and also the number of RAM cells sharing access to a comparator.
- 2. The CAM of claim 1, wherein the match lines are used, in a read or write operation, for selection of a unique CAM word, in conjunction with the assertion of one or more word lines.
Parent Case Info
This application is a continuation of application Ser. No. 09/074,653, filed May 8, 1998, which is a division of application Ser. No. 08/748,928, filed Nov. 14, 1996, now issued as U.S. Pat. No. 5,828,593 on Oct. 27, 1998, which claims the benefit of provisional application Ser. No. 60/021,576, filed Jul. 11, 1996.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5388065 |
Yoneda |
Feb 1995 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
748928 |
Nov 1996 |
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Continuations (1)
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Number |
Date |
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Parent |
074653 |
May 1998 |
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