An auxiliary component that is used with a medical device is modified to provide for additional or enhanced functionality. The method includes the following steps: a User Equipment receives an updated Operator CSG List or an Allowed CSG List from a network side; according to the updated OCL or ACL, UE generates the CSG white list. A write address buffer is configured to store write addresses associated with data being written into the non-volatile memory cell array, and a read unit is configured to perform a read operation to read data from the non-volatile memory cell array.