Intel® Arria® 10 Hard Processor System Technical Reference Manual

ID 683711
Date 1/10/2023
Public

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16.4.2.2.3. Consecutive Reads and Writes

It is possible to trigger two indirect operations at a time by triggering the start bit of the indrd or indwr register twice in short succession. The second operation can be triggered while the first operation is in progress. For example, software may trigger an indirect read or write operation while an indirect write operation is in progress. The corresponding start and count registers must be configured properly before software triggers each transfer operation.

This approach allows for a short turnaround time between the completion of one indirect operation and the start of a second operation. Any attempt to queue more than two operations causes the indirect read reject interrupt to be generated.