how to connect tja1101 to ls1028

[jason-1117]

Hi everyone,

I am new for LS1028 and I want to use it for Automotive Ethernet develop, so I need to connect 4-5 pics tja1101 to ls1028. However, tja1101 use mii/rmii and ls1028 use sgmii, how to make two chips work together(as figure show in https://community.nxp.com/t5/NXP-Designs-Knowledge-Base/Boards-and-Standard-Form-Factor/ta-p/1164256 )?

Thank you very much,

Best,

Jason Xu

[Bulat · Accepted solution]

Unfortunately the block diagram you referred to is incorrect, the TJA1101 can not be directly connected to the LS1028. Actually the LS1028 is mostly considered for industial applications rather than for automotive ones.

Regards,

Bulat