Arria V Hard Processor System Technical Reference Manual

ID 683011
Date 12/02/2022
Public
Document Table of Contents

8.3.6.2. Single Slave Per ID

Single slave per ID (SSPID) ensures the following conditions at a slave interface of a switch:

  • All outstanding read transactions with the same ID go the same destination.
  • All outstanding write transactions with the same ID go the same destination.

When a master issues a transaction, the following situations can occur:

  • If the transaction has an ID that does not match any outstanding transactions, it passes the CDAS.
  • If the transaction has an ID that matches the ID of an outstanding transaction, and the destinations also match, it passes the CDAS.
  • If the transaction has an ID that matches the ID of an outstanding transaction, and the destinations do not match, the transaction fails the CDAS check and stalls.