The DS90UB954-Q1 provides a mechanism to broadcast I2C writes to remote devices (either remote targets or serializers). For each Receive port, the TargetID and TargetAlias register pairs would be programmed with the same TargetAlias value so they would each respond to the local I2C access. The TargetID value would match the intended remote device address, either remote target or serializers. For each receive port, on of the TargetAlias registers is set with an Alias value. For each port, the TargetID value is set to the address of the remote device. These values may be the same. To access the remote serializer registers rather than a remote target, the serializer ID (SER_IDX or SER_IDY) would be used as the TargetID value.