SUB-20 User Manual - Dimax

34SUB-20SUB-20 API· *content - 16 bit register content placeholder for READ or POST-READ-INCREMENT-ADDRESS operationReturn valueOn success function returns 0. Otherwise error code.CompatibilityFW versionLibrary version0.2.1 or grater0.1.12.12 or grater3.6.3 sub_mdio_xfer, sub_mdio_xfer_exSynopsisint sub_mdio_xfer( sub_handle hndl, int count, union sub_mdio_frame* mdios )int sub_mdio_xfer_ex( sub_handle hndl, int channel, int count,union sub_mdio_frame* mdios )Generate a sequence of independent MDIO frames. Frames in sequence can be Clause 22 or Clause 45 formatwith different operations and addresses.Parameters· channel - mdio channel (see MDIO Channels ). Optional SUB_CFP_MSA flag applied to channel (channel|SUB_CFP_MSA) will force SUB-20 to generate CFP MSA compatible transaction(s) at 4MHz MDCfrequency.· count - number of frames to generate (currently up to 15).· *mdios - array of count sub_mdio_frame unionsunion sub_mdio_frame{struct{int op;int phyad;int regad;int data;}clause22;struct{int op;int prtad;int devad;int data;}clause45;};Frame operation is defined by op field value.clause22.op can beSUB_MDIO22_READSUB_MDIO22_WRITEclause45.op can beSUB_MDIO45_ADDRSUB_MDIO45_WRITESUB_MDIO45_PRIAREAD operationWRITE operationADDRESS operationWRITE operationPOST-READ-INCREMENT-ADDRESS operation© 2013 xdimax.com rev 2.17