Intel® Agilex™ Hard Processor System Technical Reference Manual

ID 683567
Date 11/11/2022
Public

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17.6.5. IEEE 1588-2008 Advanced Timestamps

In addition to the basic timestamp features mentioned in IEEE 1588‑2002 Timestamps, the EMAC supports the following advanced timestamp features defined in the IEEE 1588‑2008 standard.

  • Supports the IEEE 1588‑2008 (version 2) timestamp format. 
  • Provides an option to take a timestamp of all frames or only PTP-type frames. 
  • Provides an option to take a timestamp of event messages only. 
  • Provides an option to take the timestamp based on the clock type: ordinary, boundary, end-to-end, or peer-to-peer. 
  • Provides an option to configure the EMAC to be a master or slave for ordinary and boundary clock. 
  • Identifies the PTP message type, version, and PTP payload in frames sent directly over Ethernet and sends the status. 
  • Provides an option to measure sub‑second time in digital or binary format.