Paired T‐element design for multiple‐state acknowledge dependency

A paired T‐element that assists in successfully controlling a dual‐rail delay‐insensitive asynchronous circuit system that implements multiple states containing acknowledge networks, that are interdependent, is presented. A T‐element allows triggering of next‐state actions concurrently with negation of its acknowledge input. However, this introduces a timing assumption that can cause system failure if it is violated. With little additional overhead, the paired T‐element is designed to combine the functionality of two standard T‐elements and allow adjacent reads to take place when there are inter‐state dependencies. This component successfully overlaps advantages of the performance optimisation of the original T‐element with the safety of the solution to this control scenario, making it an important element to be used in dual‐rail delay‐insensitive asynchronous circuit systems.