Systems and methods for providing fixed-latency data access...

Details Systems and methods for providing fixed-latency data access... Systems and methods for providing fixed-latency data access...

2006-07-24

2009-12-08

Peugh, Brian R (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S154000, C711S167000

Reexamination Certificate

active

07631149

ABSTRACT:
Systems and methods for bypassing lower level caches and enabling direct access to higher level caches in order to provide fixed data latency and increased amounts of immediately accessible storage. One embodiment comprises a memory system having multiple cache memories that have increasing data latencies and amounts of storage. In a first mode which is suitable to support a microprocessor mode of a dual-mode processor, each data access proceeds conventionally, with accesses to successively higher levels of cache memory. In a second mode which is suitable to support a DSP mode of the dual-mode processor, the memory system bypasses the lower level cache and directly accesses the higher level cache in order to achieve a fixed latency (with enough cache storage to be useful to operate the processor in a DSP mode.)

REFERENCES:
patent: 5510934 (1996-04-01), Brennan et al.
patent: 6327665 (2001-12-01), Osanai
patent: 6360298 (2002-03-01), Osanai et al.
patent: 6389527 (2002-05-01), Raam et al.
patent: 6854046 (2005-02-01), Evans et al.
patent: 2003/0018855 (2003-01-01), McWilliams et al.
patent: 2004/0078790 (2004-04-01), Wu et al.
patent: 2006/0236079 (2006-10-01), Lin et al.
patent: 2007/0022277 (2007-01-01), Iwamura et al.
Texas Instruments, “Minimizing Pipeline & IBQ Delays”, TMS320C55x; DSP Programmer's Guide (rev.A); Ch. 4.4, pp. 4-49-4-84.

Affiliated with

Also associated with

Rating

Systems and methods for providing fixed-latency data access... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Systems and methods for providing fixed-latency data access..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and methods for providing fixed-latency data access... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4066648