Transition signal control unit and DMA controller and transition signal control processor using transition signal control unit

摘要

The present invention has an object to perform transition signal control for creating asynchronous timing using the transition signal control circuit, which is comprised of Muller C elements with inverter. The control device is constituted by a machine ring comprising n-stages of transition signal control circuits, a state ring which is further comprised of k-stages of transition signal control circuits, and a synchronous circuit for synchronizing with the machine ring by receiving the vector Q(T1) which is output from the state ring. When the output vector Q(T1) of the state ring is received, the synchronous circuit outputs the vector S to the machine ring. The output vector Q(M) of the machine ring and the output vector Q(T) of the state ring create timings for controlling the processor, for example, asynchronously, and these timings are input to the instruction decoder, for example.