Abstract
Reducing the number of transitions between successive words is an efficient way to reduce the power consumption. Several coding schemes like Bus-Invert (BI), Bus-Shift (BS) and Shift-Invert (SINV) have been used in order to minimize power. In this paper, an improved Circular Shift-Invert (CSINV) coding scheme is proposed where the circular shifting of data is considered instead of just a 1-bit left or right shift. The proposed scheme in comparison to other reported schemes performs better in saving power and does not need additional control bits than BS. Simulation results in the Cadence environment show an average power saving of 5% in comparison with BI and regular SINV schemes for higher bus widths.
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