A self-circulation structure for pipeline control

This paper proposes a circuit structure which can be used for both synchronous and asynchronous pipeline control. It is a self-circulation structure with embedded delay network, and a pipeline can be controlled by this structure with the interconnection of adjacent stages. This paper first proposes a basic circuit structure,then a linear pipeline is designed with self-circulation structure. The performance of linear pipeline is analyzed,and a 16-bit digital signal processor(DSP)with the structure is designed to prove the validity of the structure. Results show that about 10%-15% power consumption is saved with serf-circulation structure compared with synchronous counterpart, while almost the same performance is achieved.