Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2006-10-17
2009-06-02
Ton, David (Department: 2117)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S718000
Reexamination Certificate
active
07543216
ABSTRACT:
A method for detecting an error in data stored in configuration SRAM and user assignable SRAM in a FPGA comprises providing serial data stream into the FPGA from an external source, loading data from the serial data stream into the configuration SRAM in response to address signals generated by row column counters, loading data from the serial data stream into the user assignable SRAM in response to address signals generated by row and column counters, loading a seed and signature from the serial data stream into a cyclic redundancy checking circuit, cycling data out of configuration SRAM and user assignable SRAM by the row and column counters, performing error checking on the data that has been cycled out of the configuration SRAM and out of the user assignable SRAM by the cyclic redundancy checking circuit, and generating an error signal when an error is detected by the error checking circuit.
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Actel Corporation
Lewis and Roca LLP
Ton David
LandOfFree
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