Intel® Quartus® Prime Pro Edition User Guide: Platform Designer

ID 683609
Date 4/02/2022
Public

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6.10.6. Ordering Model

Platform Designer interconnect provides responses in the same order as the commands are issued.

To prevent reordering, for subordinates that accept reordering depths greater than 1, Platform Designer does not transfer the transaction ID from the manager, but provides a constant transaction ID of 0. For subordinates that do not reorder, Platform Designer allows the transaction ID to be transferred to the subordinate. To avoid cyclic dependencies, Platform Designer supports a single outstanding subordinate scheme for both reads and writes. Changing the targeted subordinate before all responses have returned stalls the manager, regardless of transaction ID.