Abstract: A semiconductor device includes clock adjustment circuits, provided to a plurality of functional circuits operating in synchronization with a clock signal respectively for adjusting a delay amount for each functional circuit, and a clock path selection circuit for controlling whether a clock is transmitted to the functional circuits through any one of a plurality of paths included in the clock adjustment circuits respectively. In the semiconductor device, the clock path selection circuit outputs a path instruction signal for instructing switching of a path for transmitting a clock signal in accordance with a change in an operation state of a plurality of functional circuits.

Abstract: A semiconductor device includes clock adjustment circuits, provided to a plurality of functional circuits operating in synchronization with a clock signal respectively for adjusting a delay amount for each functional circuit, and a clock path selection circuit for controlling whether a clock is transmitted to the functional circuits through any one of a plurality of paths included in the clock adjustment circuits respectively. In the semiconductor device, the clock path selection circuit outputs a path instruction signal for instructing switching of a path for transmitting a clock signal in accordance with a change in an operation state of a plurality of functional circuits.