System and method for data recovery in a disabled integrated circuit
AssigneePitney Bowes Inc.
InventorsSungwon Moh, Peter A. Pagliaro
Life of this patent
Estimating the term…
Abstract
Systems and methods for providing memory access circuitry in application specific integrated circuits, and in certain configurations for recovering data from non-volatile memory registers in a partially disabled application specific integrated circuit as provided. In one configuration, a virtual partial dual-port non-volatile memory is provided having a secondary partial read only port. In another configuration, a physical partial dual-port non-volatile memory is provided having a secondary partial read only port.
Claims20
An application specific integrated circuit comprising:
- a core processor used to access a plurality of non-volatile memory registers during normal operation of the circuit;
- a primary bus and control circuit operatively connecting the core processor to the non-volatile memory registers for read and write access;
- a virtual dual-port secondary memory access device operatively connected to the non-volatile memory registers to provide read only access to the plurality of non-volatile memory registers in a non-normal operation read mode.
An application specific integrated circuit comprising:
- a core processor used to access a plurality of non-volatile memory registers during normal operation of the circuit;
- a primary bus and control circuit operatively connecting the core processor to the non-volatile memory registers for read and write access;
- a physical dual-port secondary memory access device operatively connected to the non-volatile memory registers to provide read only access to the plurality of non-volatile memory registers in a non-normal operation read mode.
Dependencies are inferred from the claim text.