Dual-Mode Low-Power Bus Encoding for High-Performance Bus Drivers
نویسندگان
چکیده
System-level buses consume much more power by orders of magnitude than on-chip buses. Existing bus encoding schemes are based on rail-to-rail CMOS bus drivers while recent high-performance devices include BiCMOS bus drivers to achieve transfer bandwidth required. BiCMOS drivers consume significant quiescent power as well as active power proportional to the bus frequency. This paper introduces a precise power consumption model for BiCMOS drivers with sourcetermination resistors. Dual-mode bus encoding scheme is suggested as well for variable bus frequencies for power management.
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