System and method for cache external writing

Details System and method for cache external writing System and method for cache external writing

2005-01-11

2005-01-11

Nguyen, T (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S141000, C711S142000, C711S143000, C711S144000, C711S145000

Reexamination Certificate

active

06842822

ABSTRACT:
A system (10) uses shared resources (44, 54) to perform conventional load/store operations, to preload custom data from external sources, and to efficiently manage error handling in a cache (42, 52, 48). A reload buffer (44, 54) is used in conjunction with a cache (42, 52) operating in a write-through mode to permit lower level memory in the system to operate in a more efficient write-back mode. A control signal (70) selectively enables the pushing of data into the cache (42, 52, 48) from an external source. The control signal utilizes one or more attribute fields that provide functional information and define memory characteristics.

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Brian K. Bray et al., “Writes Caches As An Alternative To Write Buffers”, Technical Report No. CSL-TR-91-470, Apr. 1991, supported by NASA under NAG2-248 using facilities supplied under NAG@ 419, 20 pgs.

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