Completion Packets - 4.0 English

QDMA Subsystem for PCI Express Product Guide (PG302)

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4.0 English

When the MAX_READ_REQUEST_SIZE is greater than the MAX_PAYLOAD_SIZE, a read request for PCIe can ask for more data than the master bridge can insert into a single completion packet. When this situation occurs, multiple completion packets are generated up to MAX_PAYLOAD_SIZE, with the Read Completion Boundary (RCB) observed.