| 摘要 |
PURPOSE:To carry out an efficient data transmission by selecting a data transmission system for transmitting data of plurality of byte or a data transmission system for transmitting a data of 1 byte in accordance with a length of a transmission start time of a transmission data and a next transmission data. CONSTITUTION:A transmission start part is activated by a main program of a transmission control device 1A, and a disable signal is fed to an interruption control device 7A. Then, an interruption signal a is fed to a serializer 2A, a serial-parallel converter 3B, an interruption detector 6B, and an interruption control device 7B in a data transmission equipment B. Thereby, a transmission request from a data transmission equipment A is detected only at a starting time of transmission in the data transmission equipment B and the transmission of a plurality of bytes or an interruption processing of 1 byte transmission is selected by a timer in the device 1A. |
