>From: Jakub Kicinski <kuba@xxxxxxxxxx> >Sent: Saturday, August 10, 2024 6:16 AM > >On Thu, 8 Aug 2024 13:20:12 +0200 Arkadiusz Kubalewski wrote: >> +Device may provide ability to use Embedded SYNC feature. It allows >> +to embed additional SYNC signal into the base frequency of a pin - a one >> +special pulse of base frequency signal every time SYNC signal pulse >> +happens. The user can configure the frequency of Embedded SYNC. >> +The Embedded SYNC capability is always related to a given base frequency >> +and HW capabilities. The user is provided a range of embedded sync >> +frequencies supported, depending on current base frequency configured for >> +the pin. > >Interesting, noob question perhaps, is the signal somehow well >known or the implementation is vendor specific so both ends have >to be from the same vendor? May be worth calling that out, either way. Unfortunately, I don't have good answer for your question. I went over docs from 4 vendors of Network Synchronizer Integrated Circuits and only one supported it. I also haven't heard anything about standardized way for this, but I believe it is hard to call it vendor specific solution - IMHO there is nothing fancy that would make it hard for different vendors to implement/use. The "special" pulse-ratio and embedded sync frequency seems to be all the info needed to configure both ends. Thank you! Arkadiusz
