Bit line and/or match line partitioned content addressable memor

Details Bit line and/or match line partitioned content addressable memor Bit line and/or match line partitioned content addressable memor

1998-06-12

2000-08-08

Bragdon, Reginald G.

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

711163, 365 49, G06F 1214, G06F 1316

Patent

active

061015733

ABSTRACT:
A cache memory 18 is formed of a content addressable memory 20 and a cache RAM 22. The content addressable memory 20 is divided into two or more sections by an AND gate array 28 that serves to selectively either block or unblock the bit lines 26 that supply an input data word to the bit storage and comparison cells 34 of the content addressable memory 20. The generation of match signals for each section is also selectively blocked by preventing the match signal discharge to ground. The match signals from a blocked section are not passed to the RAM 22. The AND gate array 28 and match signal disable may be controlled by the least significant bit of the input data word, higher order bits of the input data word or may be controlled by a bit selected by program control from among the bits of the input data word. When a portion of the bit lines 26 are blocked by the AND gate array 28, then the capacitance of the bit lines 26 that need to be driven is reduced and the number of match lines discharged is halved thereby reducing power consumption.

REFERENCES:
patent: 5485418 (1996-01-01), Hiraki et al.
patent: 5777944 (1998-07-01), Knaack et al.
patent: 5946705 (1999-08-01), Cumming et al.

Affiliated with

Also associated with

Rating

Bit line and/or match line partitioned content addressable memor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bit line and/or match line partitioned content addressable memor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bit line and/or match line partitioned content addressable memor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1160351