Title :
Irredundant address bus encoding for low power
Author :
Aghaghiri, Yazdan ; Fallah, Farzan ; Pedram, Massoud
Author_Institution :
Univ. of Southern California, Los Angeles, CA, USA
Abstract :
This paper proposes efficient encoding techniques for decreasing power dissipation on global buses. The best target for these techniques is a wide and highly capacitive memory bus. Building on TO and Offset-Xor encoding techniques, we present three irredundant bus-encoding techniques. Our methods decrease switching activity up to 83% without the need for redundant bus lines. The power dissipation of encoder and decoder circuitry has also been calculated and shown to be small in comparison with the power savings on the memory address bus itself
Keywords :
encoding; integrated circuit design; low-power electronics; system buses; Offset-Xor code; TO code; capacitive memory bus; decoder circuitry; encoder circuitry; global bus; irredundant address bus encoding; low-power design; memory address bus; power dissipation; switching activity; Batteries; Central Processing Unit; Circuits; Control systems; Encoding; Hardware; Optimization methods; Permission; Power dissipation; System-on-a-chip;
Conference_Titel :
Low Power Electronics and Design, International Symposium on, 2001.
Conference_Location :
Huntington Beach, CA
Print_ISBN :
1-58113-371-5
DOI :
10.1109/LPE.2001.945397