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Hi Jagbir,
There are several TI PHYs that are suitable for EtherCAT (DP83848, DP83849, DP83822, ...), although we generally recommend using DP83826 with a processor that is MII capable for reduced latency.
The above appnote has more information about selecting PHYs for EtherCAT.
Thank you,
Evan
Thanks Evan. I am using DP83826ERHBR. In some reference design for example TMDXICE3359(ICE development board), the XI clock input pins of both the PHYs are driven from the clock synthesizer(CDCE913) . Can't we use a local crystal for each PHY for an EtherCAT functionality.
Hi Jagbir,
Please note the following requirement for the clock source and PHY => ESC connection:
https://www.ti.com/lit/an/snla344b/snla344b.pdf
Thank you,
Evan
Thanks Evan.
Your input was really helpful. What is the purpose of using a bus switch(SN74CBTLV3257RGY) along with a muxing /ORing logic (SN74LVC1G32DCK) when interfacing a PHY with AM335x as an ESC(for example in the TI reference design TMDXICE3359) .
Hi Jagbir,
Please try to consolidate similar queries to one thread. I have addressed this in the below thread:
Thank you,
Evan