Sequential circuit with error detection

摘要

Sequential circuits with error-detection are provided. They may, for example, be used to replace traditional master-slave flip-flops, e.g., in critical path circuits to detect and initiate correction of late transitions at the input of the sequential. In some embodiments, such sequentials may comprise a transition detector with a time borrowing latch.

主权项

1. A chip comprising:
a datapath; a sequential unit comprising a data output and a data input coupled to the datapath; and a logic unit having a logic unit input connected to the data input of the sequential unit to detect a late data transition at the data input of the sequential unit, wherein when the logic unit fails to detect the late data transition the data still passes from the data input to the data output to prevent the datapath metastability.