Patent ID: 6342795
Filing Date: 2002-01-29
Classification: G06F,Y02D

Abstract:
A control circuit comprising:a functional block, which is provided on a semiconductor substrate, having an operating unit that performs a predetermined operation in response to an input signal requesting an operative status and that stops the predetermined operation in response to an input signal requesting an inoperative status, the operating unit being under the control of a clock signal; and a clock control unit, which is provided in the functional block, to control the supply of the clock signal to the operating unit, wherein the operating unit supplies a status detection signal indicative of the operative status or the inoperative status to the clock control unit, when the status detection signal indicates the operative status, the clock control unit supplies the clock signal to operate the operating unit, and when the status detection signal indicates the inoperative status, the clock control unit stops the supply of the lock signal to stop the operating unit.