| 摘要 |
<p>PURPOSE:To attain an input data extraction without the input instruction of an input device by executing the input data extraction of the input device with the interruption by a host trigger. CONSTITUTION:A controller 2 sets up an input device 3a in accordance with an input processing requesting command from a higher order host 1, executes the input data and generates the attention of a trigger to show that reading can be executed. Thus, the interruption is applied to the host 1, a reading command is supplied from the host 1 to the controller 2, the input sequence by the trigger from the device 3a is used, input data are extracted and sent to the host 1. Consequently, without the input instruction of the input device by the operator operation, the input data are extracted, the host 1 can extract the data when the input data are necessary and the labor of the operator can be reduced.</p> |
