Semiconductor device

Abstract

Abstract PURPOSE:To minimize heat generation of an integrated circuit and power consumption, by adding an instruction for turning on and off supply power in block unit of function blocks which operate independently from each other, to an instruction processed by a processor. CONSTITUTION:In a processor 1b, when electric power is inputted to a power supply pad and a power supply line 2, and a prescribed resetting signal and a clock signal are inputted to each processor 1b. A power cut block 7 on each function block 6 sets a power state latch 9 to a specified state by a power state resetting signal 10. Subsequently, an instruction inputted from an instruction bus 3 is decoded by a decoder 4, and in case when its contents are an instruction for changing turn-on and turn-off of power in some function block 6, a power state changing signal 11 is outputted to the latch 9 from an internal control part 5, and power of the designated function block is turned on or off.

Inventors

• 👤 Tsunenori Umeki
• 👤 梅木　恒憲

Bibliographic Details