| 摘要 |
PURPOSE:To avoid the detection of an error in the case of occurring the blurring of padding data by comparing the counted value of a transmission data sent from a reception circuit side with a counted value detected with a detection circuit detecting a header part to detect an error. CONSTITUTION:A transmission circuit 4 sends a data selected by a selector 5, a transmission data among data is detected by a detection circuit 14 to send the counted value of the transmission data with a counter 15 is sent to a part of a header part. The comparator 17 in a reception circuit 8 compares the counted value counting the transmission data among data sent from the transmission circuit 4 with the counted value from the header part and detects a data error when the counted values are discordant. Thus, when the blurring of the processed data occurres in the padding data during the transmission of data, since no error is detected, it is not required to apply retrial and then no unnecessary time and labor is saved. Consequently, the processing efficiency is improved. |
