Saving power in the control path of embedded processors

CMOS circuits consume power during the charging and discharging of capacitances. Reducing switching activity, then, saves power in embedded processor. This paper tackles the problem by minimizing circuit switching activity at the architecture level in embedded processors. Instead of minimizing the internal switching of each processor module, it is minimized at the inputs to two modules, the address and instruction buses using Gray code addressing and cold scheduling. Results of both methods to save power are presented