| 摘要 |
<p>PURPOSE:To attain efficient data transmission control by setting a data transmission request to a transmission request storage means in advance and allowing a transmission/reception circuit section to control with respect to the transmission of data with priority so as to retrieve the load of a signal processing section. CONSTITUTION:A data transmission request generated from a control section 13 is transmitted to the signal processing section 14 via a control interface section 15 and a bus 19 and stored in a transmission request memory section 17 from the signal processing section 14. A transmission/reception circuit 12 manages the end of data transmission at each signal channel of the input/output circuit 11 and manages whether or not the transmission request flag is set to each signal channel and when the setting of the transmission request flag is identified at the end of data transmission, a transfer request is given to a data transfer section 18 so as to transmit the next data to the said signal channel quickly and the data transfer section 18 transfers quickly the data from a buffer memory 16 to the transmission reception circuit section 12. That is, the processing of the signal processing section 14 is not participated in a series of transmission from the end of data transmission to the next data transmission.</p> |
