разыскивается microchip LAN7431 registers map

http://ww1.microchip.com/downloads/en/AppNotes/AN2927-LAN743x-Programmer-Guid... может чем-то помочь , ну и :

The LAN7430/LAN7431 supports a large number of configurable features. Microchip provides a comprehensive software programming tool, MPLAB Connect Configurator (formerly ProTouch2), for EEPROM and OTP configuration ofvarious device functions and registers. All configuration is to be performed via the MPLAB Connect Configurator programming tool. For additional information on this tool, refer to th MPLAB Connect Configurator programming tool product page at http://www.microchip.com/design-centers/usb/mplab-connect-configurator.

первую ссылку не видел, спасибо :)