cdsutils sfm decode should decode the upper sdf/ramping bits
There are upper SWSTAT, SW1R, SW2R bits which 'cdsutils sfm decode' currently does not decode: SDF-DIFF is shown in SWSTAT as bit 0x0004 0000 (not in SW1,2) Gain Ramping: SWSTAT = 0x1000 0000, SW2R = 0x1000 Offset Ramping: SWSTAT = 0x2000 0000, SW2R = 0x2000 Full table in https://cdswiki.ligo-wa.caltech.edu/wiki/FilterModuleSW1SW2SWSTAT