| 摘要 |
PURPOSE:To have a fixed quantity of a pattern detector regardless of the length of a pattern which forms a data, by using an ROM memory to a storage memory for serial input data with a serial transmission system. CONSTITUTION:The serial data supplied through a data input terminal D are delivered through an output terminal P every bit via an ROM and an FF. At the same time, a fixed state number is latched to the FF from terminals D1-Dn of the ROM synchronously with the clock of a clock terminal C and then fed back to input terminals A1-An respectively. When the final bit of data is confirmed, a pattern detecting signal is transmitted from the terminal P. A pattern is written with each rise of a system without using the ROM. Thus an RAM is applicable. |
