| 摘要 |
PURPOSE:To make a CPU capable of reading correct data and executing stable serial transmission by providing a monostable multivibrator to make count only an effective clock as neglecting a noise on the clock and giving interruption to the CPU as synchronizing always with the end of the reception of one byte of the data. CONSTITUTION:The monostable multivibrator 6 to detect the presence of the clock and make a counter 5 count only the effective clock is provided so that the counter 5 is reset at the time excepting to receive the data. Because the noise on the clock is neglected and only the effective clock is counted, the CPU 8 is given the interruption as synchronizing always with the end of the reception of one byte of the data. Thus, the CPU 8 reads the correct data, and the stable serial transmission can be executed. |
