A new soft IP core for online-testing and fault-tolerant structures

Abstract

This paper presents a new soft IP core to construct online-testing and fault-tolerant structures, designs some example structures with commonly-used combinational circuits as CUTs, and analyzes the performance of these CL-ACL examples from an industrial perspective, such as area cost, power consumption, and timing. The results show that CL-ACL can be used to balance the area cost and reliability among all online-testing and fault-tolerant structures, but its power consumption is rather high, the timing of CL-ACL structure is determined by CUT and must be set separately according to different CUTs.