Data i.e. bank data, securing method for e.g. static RAM of programmable electronic circuit in airplane, involves instantiating memory accesses with addresses, and providing read data at output based on result of parity control on read data

摘要

The method involves dividing a memory space of each dual port RAM component into a main space (A) and an auxiliary space (B), and allocating each reading and writing access port (PortA, PortB) to the memory space. Simultaneous memory accesses with corresponding distinct memory addresses (Ad1, Ad2) are instantiated, where the accesses allow writing of data (D) i.e. bank data, with a parity bit and reading of the data on the ports, respectively. The read data is provided at a reading output (Dout) based on the result of parity control on the read data.