Unexpected Completion - 4.0 English

QDMA Subsystem for PCI Express Product Guide (PG302)

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4.0 English

When the slave bridge receives a completion TLP, it matches the header RequesterID and Tag to the outstanding RequesterID and Tag. A match failure indicates the TLP is an Unexpected Completion which results in the completion TLP being discarded and a Slave Unexpected Completion (SUC) interrupt strobe being asserted. Normal operation then continues.