G - Physics – 06 – F
Patent
G - Physics
06
F
354/222, 314/7
G06F 13/00 (2006.01) G06F 1/28 (2006.01) G06F 13/28 (2006.01)
Patent
CA 1109158
NON-VOLATILE STORAGE MODULE FOR A CONTROLLER ABSTRACT OF THE DISCLOSURE A non-volatile storage module as utilized in a controller for directing a plurality of control registers of a host machine. The controller including a central processor that is communicatively coupled through a system bus having control data, and address lines to the module and host machine. The non-volatile storage module includes a data memory operative to interface with the system bus for storing data, and for input-output of the data therefrom through the system bus upon command of the central processor. In addition, the module further includes a power storage unit coupled to the data memory for distributing a plurality of power signals from the host machine through a plurality of critical and non-critical power lines to the data memory for providing a power source that may be utilized therein for a power down condition and for sensing a power down con- dition on the critical power line from the power storage unit for the switching thereof to the data memory. The module also includes an apparatus that is operative upon indication of a power down condition from the host machine for generating an enabling signal to the data memory while a current address signal on the system bus is being received by the data memory.
294574
Criswell Thomas
Davis Kenneth A.
Fiske Kenton W.
Gillett Kenneth
Kukucka William P.
Sim & Mcburney
Xerox Corporation
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