| 摘要 |
<p>PURPOSE:To determine line velocity without depending on an interval to accumulate data by providing a transmission gate on the line side of a transmission FIFO register. CONSTITUTION:Before serial data are sent out to a line, a main control part closes a transmission gate 7, which is provided on the line side of a transmission FIFO register 6, and stops sending the serial data. Then, parallel data are accumulated in the transmission FIFO register 6 and a line side transmission gate 7 is opened after it is confirmed that the accumulation of the parallel data is completed or that the parallel data are accumulated up to data quantity determined in advance. Afterwards, the serial data are started being sent out. Thus, the line velocity can be determined without depending on the interval to accumulate the data.</p> |
