New behavior since rogue v4.9.0.  Workaround is to stay at v4.9.0.

See this in several instances of l2si-core/python/_XpmMini.py { cameralink-gateway, wave8, lcls2-timetool }.

        self.add(pr.RemoteVariable(

            name         = "Config_L0Select_RateSel",

            offset       = 0x18,

            bitSize      = 16,

            bitOffset    = 0,

            mode         = 'RW',

            enum =

{                 0x0000: '929 kHz',                 0x0001: '71 kHz',                 0x0002: '10 kHz',                 0x0003: '1 kHz',                 0x0004: '100 Hz',                 0x0005: '10 Hz',                 0x0006: '1 Hz',                 0x8000: 'Undefined',             }

        ))

        

        self.add(pr.RemoteVariable(

            name         = "Config_L0Select_DestSel",

            offset       = 0x18,

            bitSize      = 16,

            bitOffset    = 16,

            mode         = 'RW',

        ))

 

Using the rogue GUI, writing to one of these registers writes the same value into the other.