SUB-20 User Manual - Dimax

35SUB-20SUB-20 APISUB_MDIO45_READREAD operationFor READ and POST-READ-INCREMENT-ADDRESS operations clause22.data or clause45.data will be filledwith data read from PHY.Return valueOn success function returns 0. Otherwise error code.Exampleunion sub_mdio_frame mdios[2];mdios[0].clause22.op = SUB_MDIO22_READ;mdios[0].clause22.phyad = 0x01;mdios[0].clause22.regad = 0x12;mdios[1].clause45.op = SUB_MDIO45_ADDR;mdios[1].clause45.prtad = 0x04;mdios[1].clause45.devad = 0x02;mdios[1].clause45.data = 0x55AA;rc = sub_mdio_xfer( hndl, 2, mdios );Compatibilitysub_mdio_xferFW versionLibrary versionsub_mdio_xfer_exFW versionLibrary versionSUB_CFP_MSAFW versionLibrary version0.2.1 or grater0.1.12.12 or grater0.2.8 or grater0.1.12.18 or grater0.3.2 or grater0.1.12.24 or grater3.7 GPIO FunctionsGPIO Functional DescriptionSUB-20 GPIO can be in input or output state. GPIO state is defined by configuration bit. In output state GPIO willdrive high or low level depending on output status. In input state GPIO can be pulled high by internal weak pullupresistor.© 2013 xdimax.com rev 2.17