| 摘要 |
<p>PURPOSE:To shift to a normal operation no matter how the internal state of a reference code generator is set, by forcibly transferring the contents of a built- in register of the reference code generator by a shift control inhibitive pules. CONSTITUTION:A gate circuit 10 is inserted on the way through which an output of a comparing circuit 3 is provided to a gate circuit 4. The gate circuit 10 is closed by a shift control inhibitive pulse of an optional period, which is provided to a terminal 9 from the outside. Accordingly, when a shift control inhibitive pulse (g) is inputted, the gate circuit 10 is closed, the gate circuit 4 is opened, a clock signal is applied to a pulse generator 5, and a count value of its built- in frame counter is increased, therefore, it is possible to shift to the normal operation without fail by inputting the shift control inhibitive pulse (g) several times.</p> |
