Internal evict with external request

Details Internal evict with external request Internal evict with external request

2005-07-12

2005-07-12

Elmore, Reba I. (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S126000, C711S159000

Reexamination Certificate

active

06918008

ABSTRACT:
A cache is configured to select a cache block for eviction in response to detecting a cache miss. The cache transmits the address of the cache block as a write transaction on an interface to the cache, and the cache captures the address from the interface and reads the cache block from the cache memory in response to the address. The read may occur similar to other reads in the cache, detecting a hit in the cache (in the cache storage location from which the cache block is being evicted). The write transaction is initiated before the corresponding data is available for transfer, and the use of the bus bandwidth to initiate the transaction provides an open access time into the cache for reading the evicted cache block.

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