A review of microprocessors for use in future safety systems (TM-MIC-018)

In the Solid State Interlocking project, all the modules which have a safety-critical role have been designed using the Motorola MC6802 8-bit processor. This was a state-of-the-art device when the initial research phase of the project started in the mid-1970's, but since 1980 much more powerful 16/32-bit processor designs have...