Self-Initializing Memory Elements
نویسندگان
چکیده
Test generation for sequential circuits is complicated by the fact that the initial internal state of a circuit, after power up, cannot be predicted. This is commonly referred to as the initializability problem. In this paper, we present a new solution to the initializability problem-self initializing memory elements (SIMEs). SIMEs are designed to initialize, at power up, to a known state. The start-up environment of a memory element is analyzed in detail. This analysis is used to design several diierent types of SIMEs. Each of the designs meets diierent user requirements. We also discuss the application of SIMEs to the problem of test generation for sequential circuits. SIMEs have distinct advantages over on-chip reset signals. Compared to oo-chip reset signals, they ooer a diierent overhead-beneet trade-oo. They may also be used in conjunction with other design for test techniques. In short, they provide a designer with additional exibility during the design process.
منابع مشابه
A Note on a Modified Ternary Simulator Capable of Initializing All Fault Machine Memory Elements
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تاریخ انتشار 2007