Vorrichtung zur Fehleremulation in digitalen Logikschaltungen.

摘要

Circuit has a number of working registers (R1) associated with internal circuit nodes. These registers contain switching states of communication nodes dependent on input signals. Each working register has an associated image register (R2) enabling extraction of the switching state of the working register and a fault register (R3) connected so that the working register output is set to a fault value. The working register output is set to a fault value dependent on the fault register independent of an input signal applied to the working register.