11.10 Manipulation of the Cache by an External Agent

Snoop

A snoop request to the processor causes the processor to return the secondary cache state of the specified cache line.

At the same time, the processor atomically*1 sets the state of the specified cache line in both the primary and secondary caches according to the value of the SysCmd(2:0) bits, which define cache state change, and are supplied by the external agent.

Copyright 1996, MIPS Technologies, Inc. -- 21 MAR 96

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