CouplingDriven Signal Encoding Scheme for LowPower Interface DesignSupported in part by National Science Foundation under grant NSF MIP 96 12184, by Intel under grant 5414 and by SRC under 98HJ641
2009
Coupling effects between on-chip interconnects must be addressed in ultra deep submicron VLSI and system-on-a-chip (SoC) designs. A new low-power bus encoding scheme is proposed to minimize coupled switchings which dominate the on-chip bus power consumption. The coupling-driven bus invert method use slim encoder and decoder architecture to minimize the hardware overhead. Experimental results indicate that our encoding methods save effective switchings as much as 30% in an 8-bit bus with one-cycle redundancy.