Apparatus for transferring data from a volatile main memory to a store unit upon the occurrence of an electrical supply failure in a data processing system
Volatile memory support system
Configuration and control unit for a heterogeneous multi-system
Protection circuit to minimize the effects of power line interruptions on the contents of a volatile electronic memory
ApplicationNo. 06/134246 filed on 03/26/1980
US Classes:711/162, Backup365/228, Data preservation714/22With power supply status monitoring
ExaminersPrimary: Shaw, Gareth D.
Assistant: Chan, Eddie P.
Attorney, Agent or Firm
International ClassG06F 11/14 (20060101)
AbstractA system for preserving data associated with a memory unit having a volatile section and a non-volatile section. The system controls the transfer of data between the volatile and non-volatile sections of the memory unit and also handles successive impending power fail signals so as to preserve data such as transaction totals, for example, and also includes a control means to enable the system to return to a processing point at which the first of the impending power fail signals occurred, thereby avoiding reconstruction of an aborted transaction, for example.