| 摘要 |
PURPOSE:To simplify constitution and to reduce cost by combining a storing circuit and a latching circuit so that the prescribed combination of plural input digital signals and generation of said combination by a prescribed sequence is detected at the same time. CONSTITUTION:A prescribed pattern taking into consideration the detection of a combination of plural digital signals, and the detection of a generating sequence of said combination is stored in a storing circuit 18, and the data output terminals D0, D1 of the storing circuit 18 are connected to address input terminals A0, A1 through latching circuit 20, 22. The signals A, B of a data I are received by the address input terminals to detect that the prescribed combination of plural digital signals is generated, and that said prescribed combination is generated in a prescribed sequence by the stored pattern of the storing circuit 18. |
