AM3357: Inquiry on feasibility and pin assignment for 2-channel Ethernet and 1-channel EtherCAT implementation using AM3357

Hello Toshiyuki Takahashi-san,

Thank you for reaching out to our Sitara MPU Hardware Applications Support team.

The information regarding the AM335x Ethernet subsystems is present in the AM335x Sitara Processors Datasheet:

You may also find this E2E thread informative regarding AM3357 Ethernet / EtherCAT support:

(+) PROCESSOR-SDK-AM335X: EtherCAT supporting processors - Processors forum - Processors - TI E2E support forums

So the AM335x supports 2x Ethernet ports and 1x EtherCAT port.

A bit old but a good reference document on the Gigabit Ethernet Switch Subsystem architecture:

Gigabit Ethernet Switch Subsystem for KeyStone Devices User's Guide (Rev. D)

The key Chapter, Ethernet Subsystem of the AM335x TRM (spruh73q) :

Ethernet/IP on TI's Sitara AM335x

Industrial Communication Protocols supported on TI's processors and MCUs

I will follow-up with more information on AM335x Ethernet RMII/RGMII I/O Sets early next week.

Thanks

Best Regards,

Anastas Yordanov

Dear Mr. Yordanov,

Thank you for the update. I look forward to receiving the additional information on the AM335x Ethernet RMII/RGMII I/O sets.

Best regards,

Hello Toshiyuki Takahashi-san,

I'd like to apologize for the time gap in my response.

If you refer the below excerpt of the AM3357 Datasheet / Chapter, Terminal Configuration and Functions / Section, Signal Descriptions,

you will see that all of the Ethernet MAC RGMII and RMII signal corresponding valid I/O sets of AM3357 pins are available in the "Pin Mux Utility". You can use the online TI Sysconfig integrated Pin-mux configuration tool here: https://dev.ti.com/sysconfig or the standalone TI Sysconfig / Pin-mux  configuration tool variants.

I hope this helps identify the correct RMII and RGMII sigals corresponding  AM3357 pin I/O Sets.

Thank you !

Best Regards,

Anastas Yordanov