ECAT从站芯片ET1100说明书，SectionIII–HardwareDescription(SpecificESC)SectionIIIisESCspecificandcontainsdetailedinformationabouttheESCfeatures,implementedregisters,configuration,interfaces,pinout,usage,electricalandmechanicalspecification,andsoon.EspeciallytheProcessDataInterfaces(PDI)supportedbytheE