Other Parts Discussed in Thread: PROFIBUS
I saw the description shown in figure in User Guide of 'AMIC110 Industrial Communications Engine' . I don't know what the DDR3 used for. Does it only need in EtherCAT solution? What about Profibus/Profinet?
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Profibus stack (TMG Technologie und Engineering - PROFIBUS DP V1 Slave Stack) might not require DDR but Profinet will require on AMIC110 due to reduced on-chip RAM available on this part.