Title :
Adaptive circuit techniques to minimize variation impacts on microprocessor performance and power
Author :
Tschanz, James ; Narendra, Siva ; Keshavarzi, Ali ; De, Vivek
Author_Institution :
Circuits Res., Intel Labs, Hillsboro, OR, USA
Abstract :
Adaptive supply voltage and adaptive body bias may be used to control the frequency and leakage distribution of fabricated microprocessor dies. Testchip measurements show that adaptive VCC is effective in reducing the impact of parameter variations on frequency, active power, and leakage power of microprocessors when 20 mV VCC resolution is used. Using adaptive VCC together with adaptive VBS or WID-VBS is much more effective than using any of them individually.
Keywords :
adaptive control; frequency control; microprocessor chips; minimisation; active power; adaptive body bias; adaptive circuit techniques; adaptive supply voltage; frequency control; leakage distribution control; leakage power; microprocessor dies; parameter variations; variation impact minimization; Adaptive control; CMOS technology; Capacitance; Circuit testing; Frequency; MOS devices; Microprocessors; Power measurement; Programmable control; Voltage control;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1464511
