Intel® Agilex™ Hard Processor System Technical Reference Manual

ID 683567
Date 2/14/2023
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

17.6.8.3.1. Matched Frames

The MAC forwards the frames, which match all enabled fields, to the application along with the status. The MAC gives the matched field status only if one of the following conditions is true:

  • All enabled Layer 3 and Layer 4 fields match.
  • At least one of the enabled field matches and other fields are bypassed or disabled.

Using the CSR set, you can define up to four filters, identified as filter 0 through filter 3. When multiple Layer 3 and Layer 4 filters are enabled, any filter match is considered as a match. If more than one filter matches, the MAC provides status of the lowest filter with filter 0 being the lowest and filter 3 being the highest. For example, if filter 0 and filter 1 match, the MAC gives the status corresponding to filter 0.