DIGITAL SYSTEM, CLOCK DELAY DETECTION CIRCUIT, AND CLOCK DELAY DETECTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a clock delay detection circuit and a clock delay detection method.;SOLUTION: This clock delay detection circuit is equipped with a delay detection circuit and a clock forwarding circuit. The delay detection circuit detects delays of predetermined output clock signals from input clock signals, generates an initial parameter corresponding to the delays if all the detected delays coincide with one another, continues to detect the delays until all the detected delays coincide with one another if any of the detected delays does not coincide with any of other detected delays, and generates a reset control signal in response to a system reset signal or a predetermined internal reset signal. The clock forwarding circuit executes a loading or unloading operation of input data in response to the initial parameter.;COPYRIGHT: (C)2004,JPO