| 摘要 |
PURPOSE:To prevent latency time from occurring by reading out and clearing data accumulated in the file of data with respect to transaction simultaneously with the write of the data on the file. CONSTITUTION:Unworked data with respect to the transaction inputted via an input device 12 is written on a writable file selected based on the storage content of a file managing table 32, and is accumulated and held. Meanwhile, when an instruction to transmit the unworked data to a host controller 10 is issued, accumulation data is read out from a transmittable file selected based on the storage content of the file managing table 32, and is transmitted to the host controller 10 via a communication line 9. The data in the file from which all the accumulation data are transmitted to the host controller 10 is cleared afterwards. Thereby, operating efficiency can be improved, and the latency time can be prevented from occurring. |
