6.18 System Interface Coherency

External Intervention Shared Request

An external intervention shared request is used by an external agent to obtain a Shared copy of a cache block. If the desired block resides in the processor cache, it is marked Shared.

If the secondary cache block's former state was DirtyExclusive, the processor issues a processor coherency data response.

Copyright 1995, MIPS Technologies, Inc. -- 29 JAN 96

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