A method and chip design are provided for reducing power consumption. A
first functional block having a phase logic circuit may be provided in a
first area of a chip. A second functional block having an edge-triggered
circuit may be provided in a second area of the chip. Edge-triggered
circuits within the second functional block may be replaced with dual
edge-triggered circuits. Phase logic circuits may be clocked by a full
frequency clock signal and dual edge-triggered circuits may be clocked by
a half-frequency clock signal.