Implementation of AHB bus protocol for system on chip security

A set of design methodologies and experiments related to enabling hardware systems to utilize on-the-fly configuration of reconfigurable logic to recover system operation from unexpected loss of system function. Methods included programming using locally stored configuration bit stream as well as using configuration bit stream transmitted from a remote site. A specific ways of utilizing reconfigurable logic to regenerate system function, as well as the effectiveness of this approach as a function of the type of attack, and various architectural attributes of the system. Based on this analysis, proposed architectural features of System-on-Chip (SOC) that can minimize performance degradation and maximize the likelihood of seamless system operation despite the function replacement. This approach is highly feasible in that it is not required to specially manage system software and other normal system hardware functions for the replacement.