2.6.2. Errors for WriteUnique and WriteLineUnique

For WU and WLU transactions, the CCI-400 generates a snoop, CleanInvalid or MakeInvalid, followed by a WriteNoSnoop transaction. If an error response is received for either of these transactions, the original write is responded to with an error. Table 2.7 shows the mapping for errors for WriteUnique and WriteLineUnique.

Table 2.7. Errors for WriteUnique and WriteLineUnique

Snoop responseWriteNoSnoop responseBRESP to originator
OKOKOK
OKSLVERRSLVERR
OKDECERRDECERR
ERROROKSLVERR
ERRORSLVERRSLVERR
ERRORDECERRDECERR

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