Patent ID: 7215142
Filing Date: 2007-05-08
Classification: H03K

Abstract:
1. An inverse toggle circuit, comprising: a pair of input connections for receiving each of four possible input signal combinations in a fixed sequence and in a rotational manner; four data paths defined to be exercised in accordance with a respective one of the four possible input signal combinations to be received at the pair of input connections such that each data path is to be exercised in a fixed sequence and in a rotational manner; a first output connection defined to be controlled by a first data path and a third data path to be exercised in the fixed sequence; and a second output connection defined to be controlled by a second data path and a fourth data path to be exercised in the fixed sequence, wherein each data path is defined such that a currently exercised data path generates an output signal having an asserted state on the output connection defined to be controlled by the currently exercised data path, and the currently exercised data path causes a next data path in the fixed sequence to generate an output signal having a non-asserted state on the output connection defined to be controlled by the next data path in the fixed sequence.