Embedded and Microcontrollers forum Barrier Transactions in ACE

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Barrier Transactions in ACE

Josesmn over 7 years ago

Can somebody please explain how barrier transactions in ACE work?

Thanks in advance.

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Christopher Tory over 7 years ago +2 verified

I'm not sure which part of ACE barriers are unclear, but your primary reference should be Section D8 in the ACE Specification. Specifically, D8.4.1 contains a diagram and the various requirements that...
Christopher Tory over 7 years ago in reply to Josesmn +1

Normally, the only reason for broadcasting barriers into the system is when you have a point in the interconnect or the slave that is returning early write responses that do not originate from the slave...
Christopher Tory over 7 years ago in reply to Josesmn +1 verified

Josesmn said: 1. So in the case of a Memory Barrier, to ensure the ordering, the interconnect should pass all the transactions issued before the Barrier to the slaves before passing the Barrier itself...