The Common Platform Time Sync (CPTS) module is used to facilitate host control of time sync operations. It enables compliance with the IEEE 1588-2008 standard for a precision clock synchronization protocol.
Main features of CPTS module are:
- Supports the selection of multiple external clock sources
- Software control of time sync events via interrupt or polling
- Supports up to 4 hardware timestamp push inputs
- Supports timestamp counter compare output (CPTS_COMP)
- Supports timestamp counter bit output (CPTS_SYNC)
- Supports a configurable number of timestamp Generator bit outputs (CPTS_GENFn).
- Supports Ethernet Enhanced Scheduled Traffic Operations (CPTS_ESTFn).
- 32-bit and 64-bit timestamp modes with PPM and nudge adjustment.