The Fusion GUI can detail the writes necessary to write current configuration to a device into a script file. The PMBus Write Script file is composed of standard SMBus or PMBus commands.
The PMBus write script file is different than a data flash script file. The former accesses the RAM of the device directly while the latter accesses the data flash directly. This format is not support by the UCD90320U, UCD90320, and UCD90240 devices.
For more FAQ please check the following document.
UCD90xxx Family Frequently Asked Questions and Answers
UCD9090 UCD9090A UCD90120 UCD90120A UCD90124 UCD90124A UCD90160 UCD90160A UCD90240 UCD90320 UCD90320U